20535543

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4591}}^1$

素因数の和:4675

約数の個数: 24

約数和(自身を含む): 34384896

約数和(自身を除く): 13849353

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4591, 13773, 32137, 41319, 96411, 289233, 325961, 977883, 2281727, 2933649, 6845181, 20535543]

約数ペア:

[(1, 20535543), (3, 6845181), (7, 2933649), (9, 2281727), (21, 977883), (63, 325961), (71, 289233), (213, 96411), (497, 41319), (639, 32137), (1491, 13773), (4473, 4591)]