21726608

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25621}}^1$

素因数の和:25682

約数の個数: 20

約数和(自身を含む): 42891228

約数和(自身を除く): 21164620

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25621, 51242, 102484, 204968, 409936, 1357913, 2715826, 5431652, 10863304, 21726608]

約数ペア:

[(1, 21726608), (2, 10863304), (4, 5431652), (8, 2715826), (16, 1357913), (53, 409936), (106, 204968), (212, 102484), (424, 51242), (848, 25621)]