20291205

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3967}}^1$

素因数の和:4017

約数の個数: 32

約数和(自身を含む): 36569088

約数和(自身を除く): 16277883

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 3967, 5115, 11901, 19835, 43637, 59505, 122977, 130911, 218185, 368931, 614885, 654555, 1352747, 1844655, 4058241, 6763735, 20291205]

約数ペア:

[(1, 20291205), (3, 6763735), (5, 4058241), (11, 1844655), (15, 1352747), (31, 654555), (33, 614885), (55, 368931), (93, 218185), (155, 130911), (165, 122977), (341, 59505), (465, 43637), (1023, 19835), (1705, 11901), (3967, 5115)]