20996901

素因数分解:

$3^5\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1303

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 10924443

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 1217, 1917, 3651, 5751, 10953, 17253, 32859, 86407, 98577, 259221, 295731, 777663, 2332989, 6998967, 20996901]

約数ペア:

[(1, 20996901), (3, 6998967), (9, 2332989), (27, 777663), (71, 295731), (81, 259221), (213, 98577), (243, 86407), (639, 32859), (1217, 17253), (1917, 10953), (3651, 5751)]