20812473

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4889}}^1$

素因数の和:4949

約数の個数: 24

約数和(自身を含む): 33564960

約数和(自身を除く): 12752487

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 4889, 14667, 44001, 53779, 161337, 210227, 484011, 630681, 1892043, 2312497, 6937491, 20812473]

約数ペア:

[(1, 20812473), (3, 6937491), (9, 2312497), (11, 1892043), (33, 630681), (43, 484011), (99, 210227), (129, 161337), (387, 53779), (473, 44001), (1419, 14667), (4257, 4889)]