12780651

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 19994688

約数和(自身を除く): 7214037

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 521, 629, 663, 1443, 1563, 1887, 6773, 8177, 8857, 19277, 20319, 24531, 26571, 57831, 115141, 250601, 327709, 345423, 751803, 983127, 4260217, 12780651]

約数ペア:

[(1, 12780651), (3, 4260217), (13, 983127), (17, 751803), (37, 345423), (39, 327709), (51, 250601), (111, 115141), (221, 57831), (481, 26571), (521, 24531), (629, 20319), (663, 19277), (1443, 8857), (1563, 8177), (1887, 6773)]