21890843

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{613}}^1$

素因数の和:734

約数の個数: 16

約数和(自身を含む): 24550176

約数和(自身を除く): 2659333

約数列:

[1, 13, 41, 67, 533, 613, 871, 2747, 7969, 25133, 35711, 41071, 326729, 533923, 1683911, 21890843]

約数ペア:

[(1, 21890843), (13, 1683911), (41, 533923), (67, 326729), (533, 41071), (613, 35711), (871, 25133), (2747, 7969)]