19679973

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1279}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 27525120

約数和(自身を除く): 7845147

約数列:

[1, 3, 23, 69, 223, 669, 1279, 3837, 5129, 15387, 29417, 88251, 285217, 855651, 6559991, 19679973]

約数ペア:

[(1, 19679973), (3, 6559991), (23, 855651), (69, 285217), (223, 88251), (669, 29417), (1279, 15387), (3837, 5129)]