20020665

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27239}}^1$

素因数の和:27261

約数の個数: 24

約数和(自身を含む): 37264320

約数和(自身を除く): 17243655

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27239, 81717, 136195, 190673, 408585, 572019, 953365, 1334711, 2860095, 4004133, 6673555, 20020665]

約数ペア:

[(1, 20020665), (3, 6673555), (5, 4004133), (7, 2860095), (15, 1334711), (21, 953365), (35, 572019), (49, 408585), (105, 190673), (147, 136195), (245, 81717), (735, 27239)]