18720155998

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{406959913}}^1$

素因数の和:406959938

約数の個数: 8

約数和(自身を含む): 29301113808

約数和(自身を除く): 10580957810

約数列:

[1, 2, 23, 46, 406959913, 813919826, 9360077999, 18720155998]

約数ペア:

[(1, 18720155998), (2, 9360077999), (23, 813919826), (46, 406959913)]