21431580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 63201600

約数和(自身を除く): 41770020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 109, 113, 116, 145, 174, 218, 226, 290, 327, 339, 348, 435, 436, 452, 545, 565, 580, 654, 678, 870, 1090, 1130, 1308, 1356, 1635, 1695, 1740, 2180, 2260, 3161, 3270, 3277, 3390, 6322, 6540, 6554, 6780, 9483, 9831, 12317, 12644, 13108, 15805, 16385, 18966, 19662, 24634, 31610, 32770, 36951, 37932, 39324, 47415, 49155, 49268, 61585, 63220, 65540, 73902, 94830, 98310, 123170, 147804, 184755, 189660, 196620, 246340, 357193, 369510, 714386, 739020, 1071579, 1428772, 1785965, 2143158, 3571930, 4286316, 5357895, 7143860, 10715790, 21431580]

約数ペア:

[(1, 21431580), (2, 10715790), (3, 7143860), (4, 5357895), (5, 4286316), (6, 3571930), (10, 2143158), (12, 1785965), (15, 1428772), (20, 1071579), (29, 739020), (30, 714386), (58, 369510), (60, 357193), (87, 246340), (109, 196620), (113, 189660), (116, 184755), (145, 147804), (174, 123170), (218, 98310), (226, 94830), (290, 73902), (327, 65540), (339, 63220), (348, 61585), (435, 49268), (436, 49155), (452, 47415), (545, 39324), (565, 37932), (580, 36951), (654, 32770), (678, 31610), (870, 24634), (1090, 19662), (1130, 18966), (1308, 16385), (1356, 15805), (1635, 13108), (1695, 12644), (1740, 12317), (2180, 9831), (2260, 9483), (3161, 6780), (3270, 6554), (3277, 6540), (3390, 6322)]