20129615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21529}}^1$

素因数の和:21562

約数の個数: 16

約数和(自身を含む): 27902880

約数和(自身を除く): 7773265

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21529, 107645, 236819, 365993, 1184095, 1829965, 4025923, 20129615]

約数ペア:

[(1, 20129615), (5, 4025923), (11, 1829965), (17, 1184095), (55, 365993), (85, 236819), (187, 107645), (935, 21529)]