28397551

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{997}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 35097664

約数和(自身を除く): 6700113

約数列:

[1, 7, 13, 91, 313, 997, 2191, 4069, 6979, 12961, 28483, 90727, 312061, 2184427, 4056793, 28397551]

約数ペア:

[(1, 28397551), (7, 4056793), (13, 2184427), (91, 312061), (313, 90727), (997, 28483), (2191, 12961), (4069, 6979)]