21456839

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:730

約数の個数: 16

約数和(自身を含む): 23872320

約数和(自身を除く): 2415481

約数列:

[1, 17, 29, 71, 493, 613, 1207, 2059, 10421, 17777, 35003, 43523, 302209, 739891, 1262167, 21456839]

約数ペア:

[(1, 21456839), (17, 1262167), (29, 739891), (71, 302209), (493, 43523), (613, 35003), (1207, 17777), (2059, 10421)]