21990150

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 74995200

約数和(自身を除く): 53005050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 27, 30, 35, 39, 42, 45, 50, 54, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 135, 150, 175, 179, 182, 189, 195, 210, 225, 234, 270, 273, 315, 325, 350, 351, 358, 378, 390, 450, 455, 525, 537, 546, 585, 630, 650, 675, 702, 819, 895, 910, 945, 975, 1050, 1074, 1170, 1253, 1350, 1365, 1575, 1611, 1638, 1755, 1790, 1890, 1950, 2275, 2327, 2457, 2506, 2685, 2730, 2925, 3150, 3222, 3510, 3759, 4095, 4475, 4550, 4654, 4725, 4833, 4914, 5370, 5850, 6265, 6825, 6981, 7518, 8055, 8190, 8775, 8950, 9450, 9666, 11277, 11635, 12285, 12530, 13425, 13650, 13962, 16110, 16289, 17550, 18795, 20475, 20943, 22554, 23270, 24165, 24570, 26850, 31325, 32578, 33831, 34905, 37590, 40275, 40950, 41886, 48330, 48867, 56385, 58175, 61425, 62650, 62829, 67662, 69810, 80550, 81445, 93975, 97734, 104715, 112770, 116350, 120825, 122850, 125658, 146601, 162890, 169155, 174525, 187950, 209430, 241650, 244335, 281925, 293202, 314145, 338310, 349050, 407225, 439803, 488670, 523575, 563850, 628290, 733005, 814450, 845775, 879606, 1047150, 1221675, 1466010, 1570725, 1691550, 2199015, 2443350, 3141450, 3665025, 4398030, 7330050, 10995075, 21990150]

約数ペア:

[(1, 21990150), (2, 10995075), (3, 7330050), (5, 4398030), (6, 3665025), (7, 3141450), (9, 2443350), (10, 2199015), (13, 1691550), (14, 1570725), (15, 1466010), (18, 1221675), (21, 1047150), (25, 879606), (26, 845775), (27, 814450), (30, 733005), (35, 628290), (39, 563850), (42, 523575), (45, 488670), (50, 439803), (54, 407225), (63, 349050), (65, 338310), (70, 314145), (75, 293202), (78, 281925), (90, 244335), (91, 241650), (105, 209430), (117, 187950), (126, 174525), (130, 169155), (135, 162890), (150, 146601), (175, 125658), (179, 122850), (182, 120825), (189, 116350), (195, 112770), (210, 104715), (225, 97734), (234, 93975), (270, 81445), (273, 80550), (315, 69810), (325, 67662), (350, 62829), (351, 62650), (358, 61425), (378, 58175), (390, 56385), (450, 48867), (455, 48330), (525, 41886), (537, 40950), (546, 40275), (585, 37590), (630, 34905), (650, 33831), (675, 32578), (702, 31325), (819, 26850), (895, 24570), (910, 24165), (945, 23270), (975, 22554), (1050, 20943), (1074, 20475), (1170, 18795), (1253, 17550), (1350, 16289), (1365, 16110), (1575, 13962), (1611, 13650), (1638, 13425), (1755, 12530), (1790, 12285), (1890, 11635), (1950, 11277), (2275, 9666), (2327, 9450), (2457, 8950), (2506, 8775), (2685, 8190), (2730, 8055), (2925, 7518), (3150, 6981), (3222, 6825), (3510, 6265), (3759, 5850), (4095, 5370), (4475, 4914), (4550, 4833), (4654, 4725)]