18700886

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{3947}}^1$

素因数の和:4075

約数の個数: 16

約数和(自身を含む): 29562624

約数和(自身を除く): 10861738

約数列:

[1, 2, 23, 46, 103, 206, 2369, 3947, 4738, 7894, 90781, 181562, 406541, 813082, 9350443, 18700886]

約数ペア:

[(1, 18700886), (2, 9350443), (23, 813082), (46, 406541), (103, 181562), (206, 90781), (2369, 7894), (3947, 4738)]