20139665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44263}}^1$

素因数の和:44288

約数の個数: 16

約数和(自身を含む): 29745408

約数和(自身を除く): 9605743

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 44263, 221315, 309841, 575419, 1549205, 2877095, 4027933, 20139665]

約数ペア:

[(1, 20139665), (5, 4027933), (7, 2877095), (13, 1549205), (35, 575419), (65, 309841), (91, 221315), (455, 44263)]