20952723

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 30968784

約数和(自身を除く): 10016061

約数列:

[1, 3, 11, 33, 121, 197, 293, 363, 591, 879, 2167, 3223, 6501, 9669, 23837, 35453, 57721, 71511, 106359, 173163, 634931, 1904793, 6984241, 20952723]

約数ペア:

[(1, 20952723), (3, 6984241), (11, 1904793), (33, 634931), (121, 173163), (197, 106359), (293, 71511), (363, 57721), (591, 35453), (879, 23837), (2167, 9669), (3223, 6501)]