21528990

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3797}}^1$

素因数の和:3823

約数の個数: 80

約数和(自身を含む): 66176352

約数和(自身を除く): 44647362

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3797, 5670, 7594, 11391, 18985, 22782, 26579, 34173, 37970, 53158, 56955, 68346, 79737, 102519, 113910, 132895, 159474, 170865, 205038, 239211, 265790, 307557, 341730, 398685, 478422, 512595, 615114, 717633, 797370, 1025190, 1196055, 1435266, 1537785, 2152899, 2392110, 3075570, 3588165, 4305798, 7176330, 10764495, 21528990]

約数ペア:

[(1, 21528990), (2, 10764495), (3, 7176330), (5, 4305798), (6, 3588165), (7, 3075570), (9, 2392110), (10, 2152899), (14, 1537785), (15, 1435266), (18, 1196055), (21, 1025190), (27, 797370), (30, 717633), (35, 615114), (42, 512595), (45, 478422), (54, 398685), (63, 341730), (70, 307557), (81, 265790), (90, 239211), (105, 205038), (126, 170865), (135, 159474), (162, 132895), (189, 113910), (210, 102519), (270, 79737), (315, 68346), (378, 56955), (405, 53158), (567, 37970), (630, 34173), (810, 26579), (945, 22782), (1134, 18985), (1890, 11391), (2835, 7594), (3797, 5670)]