20575413

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2543}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 31749120

約数和(自身を除く): 11173707

約数列:

[1, 3, 9, 29, 31, 87, 93, 261, 279, 899, 2543, 2697, 7629, 8091, 22887, 73747, 78833, 221241, 236499, 663723, 709497, 2286157, 6858471, 20575413]

約数ペア:

[(1, 20575413), (3, 6858471), (9, 2286157), (29, 709497), (31, 663723), (87, 236499), (93, 221241), (261, 78833), (279, 73747), (899, 22887), (2543, 8091), (2697, 7629)]