20830172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1217}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 39901680

約数和(自身を除く): 19071508

約数列:

[1, 2, 4, 11, 22, 44, 389, 778, 1217, 1556, 2434, 4279, 4868, 8558, 13387, 17116, 26774, 53548, 473413, 946826, 1893652, 5207543, 10415086, 20830172]

約数ペア:

[(1, 20830172), (2, 10415086), (4, 5207543), (11, 1893652), (22, 946826), (44, 473413), (389, 53548), (778, 26774), (1217, 17116), (1556, 13387), (2434, 8558), (4279, 4868)]