21146878

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7873}}^1$

素因数の和:7971

約数の個数: 16

約数和(自身を含む): 34015680

約数和(自身を除く): 12868802

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 7873, 15746, 133841, 267682, 621967, 1243934, 10573439, 21146878]

約数ペア:

[(1, 21146878), (2, 10573439), (17, 1243934), (34, 621967), (79, 267682), (158, 133841), (1343, 15746), (2686, 7873)]