21019320

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:482

約数の個数: 192

約数和(自身を含む): 82368000

約数和(自身を除く): 61348680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 380, 399, 420, 439, 456, 504, 532, 570, 630, 665, 684, 760, 798, 840, 855, 878, 1064, 1140, 1197, 1260, 1317, 1330, 1368, 1596, 1710, 1756, 1995, 2195, 2280, 2394, 2520, 2634, 2660, 3073, 3192, 3420, 3512, 3951, 3990, 4390, 4788, 5268, 5320, 5985, 6146, 6585, 6840, 7902, 7980, 8341, 8780, 9219, 9576, 10536, 11970, 12292, 13170, 15365, 15804, 15960, 16682, 17560, 18438, 19755, 23940, 24584, 25023, 26340, 27657, 30730, 31608, 33364, 36876, 39510, 41705, 46095, 47880, 50046, 52680, 55314, 58387, 61460, 66728, 73752, 75069, 79020, 83410, 92190, 100092, 110628, 116774, 122920, 125115, 138285, 150138, 158040, 166820, 175161, 184380, 200184, 221256, 233548, 250230, 276570, 291935, 300276, 333640, 350322, 368760, 375345, 467096, 500460, 525483, 553140, 583870, 600552, 700644, 750690, 875805, 1000920, 1050966, 1106280, 1167740, 1401288, 1501380, 1751610, 2101932, 2335480, 2627415, 3002760, 3503220, 4203864, 5254830, 7006440, 10509660, 21019320]

約数ペア:

[(1, 21019320), (2, 10509660), (3, 7006440), (4, 5254830), (5, 4203864), (6, 3503220), (7, 3002760), (8, 2627415), (9, 2335480), (10, 2101932), (12, 1751610), (14, 1501380), (15, 1401288), (18, 1167740), (19, 1106280), (20, 1050966), (21, 1000920), (24, 875805), (28, 750690), (30, 700644), (35, 600552), (36, 583870), (38, 553140), (40, 525483), (42, 500460), (45, 467096), (56, 375345), (57, 368760), (60, 350322), (63, 333640), (70, 300276), (72, 291935), (76, 276570), (84, 250230), (90, 233548), (95, 221256), (105, 200184), (114, 184380), (120, 175161), (126, 166820), (133, 158040), (140, 150138), (152, 138285), (168, 125115), (171, 122920), (180, 116774), (190, 110628), (210, 100092), (228, 92190), (252, 83410), (266, 79020), (280, 75069), (285, 73752), (315, 66728), (342, 61460), (360, 58387), (380, 55314), (399, 52680), (420, 50046), (439, 47880), (456, 46095), (504, 41705), (532, 39510), (570, 36876), (630, 33364), (665, 31608), (684, 30730), (760, 27657), (798, 26340), (840, 25023), (855, 24584), (878, 23940), (1064, 19755), (1140, 18438), (1197, 17560), (1260, 16682), (1317, 15960), (1330, 15804), (1368, 15365), (1596, 13170), (1710, 12292), (1756, 11970), (1995, 10536), (2195, 9576), (2280, 9219), (2394, 8780), (2520, 8341), (2634, 7980), (2660, 7902), (3073, 6840), (3192, 6585), (3420, 6146), (3512, 5985), (3951, 5320), (3990, 5268), (4390, 4788)]