21511800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:95

約数の個数: 288

約数和(自身を含む): 82695600

約数和(自身を除く): 61183800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 19, 20, 24, 25, 30, 34, 36, 37, 38, 40, 45, 50, 51, 57, 60, 68, 72, 74, 75, 76, 85, 90, 95, 100, 102, 111, 114, 120, 136, 148, 150, 152, 153, 170, 171, 180, 185, 190, 200, 204, 222, 225, 228, 255, 285, 296, 300, 306, 323, 333, 340, 342, 360, 370, 380, 408, 425, 444, 450, 456, 475, 510, 555, 570, 600, 612, 629, 646, 666, 680, 684, 703, 740, 760, 765, 850, 855, 888, 900, 925, 950, 969, 1020, 1110, 1140, 1224, 1258, 1275, 1292, 1332, 1368, 1406, 1425, 1480, 1530, 1615, 1665, 1700, 1710, 1800, 1850, 1887, 1900, 1938, 2040, 2109, 2220, 2280, 2516, 2550, 2584, 2664, 2775, 2812, 2850, 2907, 3060, 3145, 3230, 3330, 3400, 3420, 3515, 3700, 3774, 3800, 3825, 3876, 4218, 4275, 4440, 4845, 5032, 5100, 5550, 5624, 5661, 5700, 5814, 6120, 6290, 6327, 6460, 6660, 6840, 7030, 7400, 7548, 7650, 7752, 8075, 8325, 8436, 8550, 9435, 9690, 10200, 10545, 11100, 11322, 11400, 11628, 11951, 12580, 12654, 12920, 13320, 14060, 14535, 15096, 15300, 15725, 16150, 16650, 16872, 17100, 17575, 18870, 19380, 21090, 22200, 22644, 23256, 23902, 24225, 25160, 25308, 28120, 28305, 29070, 30600, 31450, 31635, 32300, 33300, 34200, 35150, 35853, 37740, 38760, 42180, 45288, 47175, 47804, 48450, 50616, 52725, 56610, 58140, 59755, 62900, 63270, 64600, 66600, 70300, 71706, 72675, 75480, 84360, 94350, 95608, 96900, 105450, 107559, 113220, 116280, 119510, 125800, 126540, 140600, 141525, 143412, 145350, 158175, 179265, 188700, 193800, 210900, 215118, 226440, 239020, 253080, 283050, 286824, 290700, 298775, 316350, 358530, 377400, 421800, 430236, 478040, 537795, 566100, 581400, 597550, 632700, 717060, 860472, 896325, 1075590, 1132200, 1195100, 1265400, 1434120, 1792650, 2151180, 2390200, 2688975, 3585300, 4302360, 5377950, 7170600, 10755900, 21511800]

約数ペア:

[(1, 21511800), (2, 10755900), (3, 7170600), (4, 5377950), (5, 4302360), (6, 3585300), (8, 2688975), (9, 2390200), (10, 2151180), (12, 1792650), (15, 1434120), (17, 1265400), (18, 1195100), (19, 1132200), (20, 1075590), (24, 896325), (25, 860472), (30, 717060), (34, 632700), (36, 597550), (37, 581400), (38, 566100), (40, 537795), (45, 478040), (50, 430236), (51, 421800), (57, 377400), (60, 358530), (68, 316350), (72, 298775), (74, 290700), (75, 286824), (76, 283050), (85, 253080), (90, 239020), (95, 226440), (100, 215118), (102, 210900), (111, 193800), (114, 188700), (120, 179265), (136, 158175), (148, 145350), (150, 143412), (152, 141525), (153, 140600), (170, 126540), (171, 125800), (180, 119510), (185, 116280), (190, 113220), (200, 107559), (204, 105450), (222, 96900), (225, 95608), (228, 94350), (255, 84360), (285, 75480), (296, 72675), (300, 71706), (306, 70300), (323, 66600), (333, 64600), (340, 63270), (342, 62900), (360, 59755), (370, 58140), (380, 56610), (408, 52725), (425, 50616), (444, 48450), (450, 47804), (456, 47175), (475, 45288), (510, 42180), (555, 38760), (570, 37740), (600, 35853), (612, 35150), (629, 34200), (646, 33300), (666, 32300), (680, 31635), (684, 31450), (703, 30600), (740, 29070), (760, 28305), (765, 28120), (850, 25308), (855, 25160), (888, 24225), (900, 23902), (925, 23256), (950, 22644), (969, 22200), (1020, 21090), (1110, 19380), (1140, 18870), (1224, 17575), (1258, 17100), (1275, 16872), (1292, 16650), (1332, 16150), (1368, 15725), (1406, 15300), (1425, 15096), (1480, 14535), (1530, 14060), (1615, 13320), (1665, 12920), (1700, 12654), (1710, 12580), (1800, 11951), (1850, 11628), (1887, 11400), (1900, 11322), (1938, 11100), (2040, 10545), (2109, 10200), (2220, 9690), (2280, 9435), (2516, 8550), (2550, 8436), (2584, 8325), (2664, 8075), (2775, 7752), (2812, 7650), (2850, 7548), (2907, 7400), (3060, 7030), (3145, 6840), (3230, 6660), (3330, 6460), (3400, 6327), (3420, 6290), (3515, 6120), (3700, 5814), (3774, 5700), (3800, 5661), (3825, 5624), (3876, 5550), (4218, 5100), (4275, 5032), (4440, 4845)]