20305259

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 23355360

約数和(自身を除く): 3050101

約数列:

[1, 13, 17, 139, 221, 661, 1807, 2363, 8593, 11237, 30719, 91879, 146081, 1194427, 1561943, 20305259]

約数ペア:

[(1, 20305259), (13, 1561943), (17, 1194427), (139, 146081), (221, 91879), (661, 30719), (1807, 11237), (2363, 8593)]