21151227

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{1451}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 29132928

約数和(自身を除く): 7981701

約数列:

[1, 3, 43, 113, 129, 339, 1451, 4353, 4859, 14577, 62393, 163963, 187179, 491889, 7050409, 21151227]

約数ペア:

[(1, 21151227), (3, 7050409), (43, 491889), (113, 187179), (129, 163963), (339, 62393), (1451, 14577), (4353, 4859)]