19716109

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 23109120

約数和(自身を除く): 3393011

約数列:

[1, 7, 79, 101, 353, 553, 707, 2471, 7979, 27887, 35653, 55853, 195209, 249571, 2816587, 19716109]

約数ペア:

[(1, 19716109), (7, 2816587), (79, 249571), (101, 195209), (353, 55853), (553, 35653), (707, 27887), (2471, 7979)]