21111704

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25621}}^1$

素因数の和:25730

約数の個数: 16

約数和(自身を含む): 39970320

約数和(自身を除く): 18858616

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25621, 51242, 102484, 204968, 2638963, 5277926, 10555852, 21111704]

約数ペア:

[(1, 21111704), (2, 10555852), (4, 5277926), (8, 2638963), (103, 204968), (206, 102484), (412, 51242), (824, 25621)]