20646218

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1\times {\mathrm{571}}^1$

素因数の和:853

約数の個数: 16

約数和(自身を含む): 31505760

約数和(自身を除く): 10859542

約数列:

[1, 2, 101, 179, 202, 358, 571, 1142, 18079, 36158, 57671, 102209, 115342, 204418, 10323109, 20646218]

約数ペア:

[(1, 20646218), (2, 10323109), (101, 204418), (179, 115342), (202, 102209), (358, 57671), (571, 36158), (1142, 18079)]