30821765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{27893}}^1$

素因数の和:27928

約数の個数: 16

約数和(自身を含む): 42175728

約数和(自身を除く): 11353963

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 27893, 139465, 362609, 474181, 1813045, 2370905, 6164353, 30821765]

約数ペア:

[(1, 30821765), (5, 6164353), (13, 2370905), (17, 1813045), (65, 474181), (85, 362609), (221, 139465), (1105, 27893)]