18439408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88651}}^1$

素因数の和:88672

約数の個数: 20

約数和(自身を含む): 38474968

約数和(自身を除く): 20035560

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88651, 177302, 354604, 709208, 1152463, 1418416, 2304926, 4609852, 9219704, 18439408]

約数ペア:

[(1, 18439408), (2, 9219704), (4, 4609852), (8, 2304926), (13, 1418416), (16, 1152463), (26, 709208), (52, 354604), (104, 177302), (208, 88651)]