21897406

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{2521}}^1$

素因数の和:2667

約数の個数: 16

約数和(自身を含む): 33956208

約数和(自身を除く): 12058802

約数列:

[1, 2, 43, 86, 101, 202, 2521, 4343, 5042, 8686, 108403, 216806, 254621, 509242, 10948703, 21897406]

約数ペア:

[(1, 21897406), (2, 10948703), (43, 509242), (86, 254621), (101, 216806), (202, 108403), (2521, 8686), (4343, 5042)]