21856131

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{797}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 34607664

約数和(自身を除く): 12751533

約数列:

[1, 3, 9, 11, 33, 99, 277, 797, 831, 2391, 2493, 3047, 7173, 8767, 9141, 26301, 27423, 78903, 220769, 662307, 1986921, 2428459, 7285377, 21856131]

約数ペア:

[(1, 21856131), (3, 7285377), (9, 2428459), (11, 1986921), (33, 662307), (99, 220769), (277, 78903), (797, 27423), (831, 26301), (2391, 9141), (2493, 8767), (3047, 7173)]