19072781

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6761}}^1$

素因数の和:6812

約数の個数: 16

約数和(自身を含む): 24235008

約数和(自身を除く): 5162227

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 6761, 47327, 87893, 209591, 615251, 1467137, 2724683, 19072781]

約数ペア:

[(1, 19072781), (7, 2724683), (13, 1467137), (31, 615251), (91, 209591), (217, 87893), (403, 47327), (2821, 6761)]