21025418

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{1427}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 32387040

約数和(自身を除く): 11361622

約数列:

[1, 2, 53, 106, 139, 278, 1427, 2854, 7367, 14734, 75631, 151262, 198353, 396706, 10512709, 21025418]

約数ペア:

[(1, 21025418), (2, 10512709), (53, 396706), (106, 198353), (139, 151262), (278, 75631), (1427, 14734), (2854, 7367)]