19916585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2339}}^1$

素因数の和:2488

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 6029335

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2339, 8515, 11695, 30407, 152035, 306409, 1532045, 3983317, 19916585]

約数ペア:

[(1, 19916585), (5, 3983317), (13, 1532045), (65, 306409), (131, 152035), (655, 30407), (1703, 11695), (2339, 8515)]