18405791999

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1180691}}^1$

素因数の和:1180846

約数の個数: 16

約数和(自身を含む): 22442593536

約数和(自身を除く): 4036801537

約数列:

[1, 7, 17, 119, 131, 917, 2227, 15589, 1180691, 8264837, 20071747, 140502229, 154670521, 1082693647, 2629398857, 18405791999]

約数ペア:

[(1, 18405791999), (7, 2629398857), (17, 1082693647), (119, 154670521), (131, 140502229), (917, 20071747), (2227, 8264837), (15589, 1180691)]