21657337

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 25759944

約数和(自身を除く): 4102607

約数列:

[1, 13, 17, 43, 53, 221, 559, 689, 731, 901, 1849, 2279, 9503, 11713, 24037, 29627, 31433, 38743, 97997, 408629, 503659, 1273961, 1665949, 21657337]

約数ペア:

[(1, 21657337), (13, 1665949), (17, 1273961), (43, 503659), (53, 408629), (221, 97997), (559, 38743), (689, 31433), (731, 29627), (901, 24037), (1849, 11713), (2279, 9503)]