21145467

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{971}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 34712064

約数和(自身を除く): 13566597

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 971, 1037, 1281, 2913, 3111, 6797, 7259, 16507, 20391, 21777, 49521, 59231, 115549, 177693, 346647, 414617, 1006927, 1243851, 3020781, 7048489, 21145467]

約数ペア:

[(1, 21145467), (3, 7048489), (7, 3020781), (17, 1243851), (21, 1006927), (51, 414617), (61, 346647), (119, 177693), (183, 115549), (357, 59231), (427, 49521), (971, 21777), (1037, 20391), (1281, 16507), (2913, 7259), (3111, 6797)]