21230147270

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51780847}}^1$

素因数の和:51780895

約数の個数: 16

約数和(自身を含む): 39146321088

約数和(自身を除く): 17916173818

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51780847, 103561694, 258904235, 517808470, 2123014727, 4246029454, 10615073635, 21230147270]

約数ペア:

[(1, 21230147270), (2, 10615073635), (5, 4246029454), (10, 2123014727), (41, 517808470), (82, 258904235), (205, 103561694), (410, 51780847)]