19143025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 26123328

約数和(自身を除く): 6980303

約数列:

[1, 5, 11, 25, 55, 151, 275, 461, 755, 1661, 2305, 3775, 5071, 8305, 11525, 25355, 41525, 69611, 126775, 348055, 765721, 1740275, 3828605, 19143025]

約数ペア:

[(1, 19143025), (5, 3828605), (11, 1740275), (25, 765721), (55, 348055), (151, 126775), (275, 69611), (461, 41525), (755, 25355), (1661, 11525), (2305, 8305), (3775, 5071)]