81197431

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{11519}}^1$

素因数の和:11598

約数の個数: 16

約数和(自身を含む): 99532800

約数和(自身を除く): 18335369

約数列:

[1, 7, 19, 53, 133, 371, 1007, 7049, 11519, 80633, 218861, 610507, 1532027, 4273549, 11599633, 81197431]

約数ペア:

[(1, 81197431), (7, 11599633), (19, 4273549), (53, 1532027), (133, 610507), (371, 218861), (1007, 80633), (7049, 11519)]