81851609

素因数分解:

$7^2\times {\mathrm{89}}^1\times {\mathrm{137}}^2$

素因数の和:377

約数の個数: 18

約数和(自身を含む): 96992910

約数和(自身を除く): 15141301

約数列:

[1, 7, 49, 89, 137, 623, 959, 4361, 6713, 12193, 18769, 85351, 131383, 597457, 919681, 1670441, 11693087, 81851609]

約数ペア:

[(1, 81851609), (7, 11693087), (49, 1670441), (89, 919681), (137, 597457), (623, 131383), (959, 85351), (4361, 18769), (6713, 12193)]