20531889

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10513}}^1$

素因数の和:10557

約数の個数: 24

約数和(自身を含む): 34990592

約数和(自身を除く): 14458703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10513, 31539, 73591, 94617, 220773, 325903, 662319, 977709, 2281321, 2933127, 6843963, 20531889]

約数ペア:

[(1, 20531889), (3, 6843963), (7, 2933127), (9, 2281321), (21, 977709), (31, 662319), (63, 325903), (93, 220773), (217, 94617), (279, 73591), (651, 31539), (1953, 10513)]