21520398

素因数分解:

$2^1\times 3^1\times {\mathrm{113}}^1\times {\mathrm{31741}}^1$

素因数の和:31859

約数の個数: 16

約数和(自身を含む): 43423056

約数和(自身を除く): 21902658

約数列:

[1, 2, 3, 6, 113, 226, 339, 678, 31741, 63482, 95223, 190446, 3586733, 7173466, 10760199, 21520398]

約数ペア:

[(1, 21520398), (2, 10760199), (3, 7173466), (6, 3586733), (113, 190446), (226, 95223), (339, 63482), (678, 31741)]