20974195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20071}}^1$

素因数の和:20106

約数の個数: 16

約数和(自身を含む): 28903680

約数和(自身を除く): 7929485

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20071, 100355, 220781, 381349, 1103905, 1906745, 4194839, 20974195]

約数ペア:

[(1, 20974195), (5, 4194839), (11, 1906745), (19, 1103905), (55, 381349), (95, 220781), (209, 100355), (1045, 20071)]