18881564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1097}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 35724528

約数和(自身を除く): 16842964

約数列:

[1, 2, 4, 13, 26, 52, 331, 662, 1097, 1324, 2194, 4303, 4388, 8606, 14261, 17212, 28522, 57044, 363107, 726214, 1452428, 4720391, 9440782, 18881564]

約数ペア:

[(1, 18881564), (2, 9440782), (4, 4720391), (13, 1452428), (26, 726214), (52, 363107), (331, 57044), (662, 28522), (1097, 17212), (1324, 14261), (2194, 8606), (4303, 4388)]