18490576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88897}}^1$

素因数の和:88918

約数の個数: 20

約数和(自身を含む): 38581732

約数和(自身を除く): 20091156

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88897, 177794, 355588, 711176, 1155661, 1422352, 2311322, 4622644, 9245288, 18490576]

約数ペア:

[(1, 18490576), (2, 9245288), (4, 4622644), (8, 2311322), (13, 1422352), (16, 1155661), (26, 711176), (52, 355588), (104, 177794), (208, 88897)]