21931679

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6947}}^1$

素因数の和:7006

約数の個数: 16

約数和(自身を含む): 28014336

約数和(自身を除く): 6082657

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6947, 48629, 76417, 284827, 534919, 1993789, 3133097, 21931679]

約数ペア:

[(1, 21931679), (7, 3133097), (11, 1993789), (41, 534919), (77, 284827), (287, 76417), (451, 48629), (3157, 6947)]