18685978

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1451}}^1$

素因数の和:1637

約数の個数: 16

約数和(自身を含む): 28854144

約数和(自身を除く): 10168166

約数列:

[1, 2, 47, 94, 137, 274, 1451, 2902, 6439, 12878, 68197, 136394, 198787, 397574, 9342989, 18685978]

約数ペア:

[(1, 18685978), (2, 9342989), (47, 397574), (94, 198787), (137, 136394), (274, 68197), (1451, 12878), (2902, 6439)]