15938991

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 24729600

約数和(自身を除く): 8790609

約数列:

[1, 3, 9, 27, 31, 93, 137, 139, 279, 411, 417, 837, 1233, 1251, 3699, 3753, 4247, 4309, 12741, 12927, 19043, 38223, 38781, 57129, 114669, 116343, 171387, 514161, 590333, 1770999, 5312997, 15938991]

約数ペア:

[(1, 15938991), (3, 5312997), (9, 1770999), (27, 590333), (31, 514161), (93, 171387), (137, 116343), (139, 114669), (279, 57129), (411, 38781), (417, 38223), (837, 19043), (1233, 12927), (1251, 12741), (3699, 4309), (3753, 4247)]