720076721

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{16451}}^1$

素因数の和:16521

約数の個数: 24

約数和(自身を含む): 915257664

約数和(自身を除く): 195180943

約数列:

[1, 7, 13, 37, 91, 169, 259, 481, 1183, 3367, 6253, 16451, 43771, 115157, 213863, 608687, 1497041, 2780219, 4260809, 7912931, 19461533, 55390517, 102868103, 720076721]

約数ペア:

[(1, 720076721), (7, 102868103), (13, 55390517), (37, 19461533), (91, 7912931), (169, 4260809), (259, 2780219), (481, 1497041), (1183, 608687), (3367, 213863), (6253, 115157), (16451, 43771)]