19915007

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1481}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 24328512

約数和(自身を除く): 4413505

約数列:

[1, 7, 17, 113, 119, 791, 1481, 1921, 10367, 13447, 25177, 167353, 176239, 1171471, 2845001, 19915007]

約数ペア:

[(1, 19915007), (7, 2845001), (17, 1171471), (113, 176239), (119, 167353), (791, 25177), (1481, 13447), (1921, 10367)]