21860878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{49459}}^1$

素因数の和:49491

約数の個数: 16

約数和(自身を含む): 37391760

約数和(自身を除く): 15530882

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 49459, 98918, 642967, 840803, 1285934, 1681606, 10930439, 21860878]

約数ペア:

[(1, 21860878), (2, 10930439), (13, 1681606), (17, 1285934), (26, 840803), (34, 642967), (221, 98918), (442, 49459)]