21907868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{4493}}^1$

素因数の和:4573

約数の個数: 24

約数和(自身を含む): 40769568

約数和(自身を除く): 18861700

約数列:

[1, 2, 4, 23, 46, 53, 92, 106, 212, 1219, 2438, 4493, 4876, 8986, 17972, 103339, 206678, 238129, 413356, 476258, 952516, 5476967, 10953934, 21907868]

約数ペア:

[(1, 21907868), (2, 10953934), (4, 5476967), (23, 952516), (46, 476258), (53, 413356), (92, 238129), (106, 206678), (212, 103339), (1219, 17972), (2438, 8986), (4493, 4876)]