664501019

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{1307}}^1$

素因数の和:1515

約数の個数: 32

約数和(自身を含む): 846160896

約数和(自身を除く): 181659877

約数列:

[1, 7, 13, 37, 91, 151, 259, 481, 1057, 1307, 1963, 3367, 5587, 9149, 13741, 16991, 39109, 48359, 72631, 118937, 197357, 338513, 508417, 628667, 1381499, 2565641, 4400669, 7302209, 17959487, 51115463, 94928717, 664501019]

約数ペア:

[(1, 664501019), (7, 94928717), (13, 51115463), (37, 17959487), (91, 7302209), (151, 4400669), (259, 2565641), (481, 1381499), (1057, 628667), (1307, 508417), (1963, 338513), (3367, 197357), (5587, 118937), (9149, 72631), (13741, 48359), (16991, 39109)]