21193980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{5987}}^1$

素因数の和:6058

約数の個数: 48

約数和(自身を含む): 60359040

約数和(自身を除く): 39165060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 118, 177, 236, 295, 354, 590, 708, 885, 1180, 1770, 3540, 5987, 11974, 17961, 23948, 29935, 35922, 59870, 71844, 89805, 119740, 179610, 353233, 359220, 706466, 1059699, 1412932, 1766165, 2119398, 3532330, 4238796, 5298495, 7064660, 10596990, 21193980]

約数ペア:

[(1, 21193980), (2, 10596990), (3, 7064660), (4, 5298495), (5, 4238796), (6, 3532330), (10, 2119398), (12, 1766165), (15, 1412932), (20, 1059699), (30, 706466), (59, 359220), (60, 353233), (118, 179610), (177, 119740), (236, 89805), (295, 71844), (354, 59870), (590, 35922), (708, 29935), (885, 23948), (1180, 17961), (1770, 11974), (3540, 5987)]