16989964

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 30466800

約数和(自身を除く): 13476836

約数列:

[1, 2, 4, 61, 122, 179, 244, 358, 389, 716, 778, 1556, 10919, 21838, 23729, 43676, 47458, 69631, 94916, 139262, 278524, 4247491, 8494982, 16989964]

約数ペア:

[(1, 16989964), (2, 8494982), (4, 4247491), (61, 278524), (122, 139262), (179, 94916), (244, 69631), (358, 47458), (389, 43676), (716, 23729), (778, 21838), (1556, 10919)]