19965155

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{13913}}^1$

素因数の和:13966

約数の個数: 16

約数和(自身を含む): 28050624

約数和(自身を除く): 8085469

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 13913, 69565, 97391, 486955, 570433, 2852165, 3993031, 19965155]

約数ペア:

[(1, 19965155), (5, 3993031), (7, 2852165), (35, 570433), (41, 486955), (205, 97391), (287, 69565), (1435, 13913)]