21045807

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{313}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 31611008

約数和(自身を除く): 10565201

約数列:

[1, 3, 9, 31, 93, 241, 279, 313, 723, 939, 2169, 2817, 7471, 9703, 22413, 29109, 67239, 75433, 87327, 226299, 678897, 2338423, 7015269, 21045807]

約数ペア:

[(1, 21045807), (3, 7015269), (9, 2338423), (31, 678897), (93, 226299), (241, 87327), (279, 75433), (313, 67239), (723, 29109), (939, 22413), (2169, 9703), (2817, 7471)]