21953997

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20849}}^1$

素因数の和:20874

約数の個数: 20

約数和(自身を含む): 35319900

約数和(自身を除く): 13365903

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20849, 62547, 187641, 271037, 562923, 813111, 1688769, 2439333, 7317999, 21953997]

約数ペア:

[(1, 21953997), (3, 7317999), (9, 2439333), (13, 1688769), (27, 813111), (39, 562923), (81, 271037), (117, 187641), (351, 62547), (1053, 20849)]