20587798

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3109}}^1$

素因数の和:3172

約数の個数: 32

約数和(自身を含む): 39409920

約数和(自身を除く): 18822122

約数列:

[1, 2, 7, 11, 14, 22, 43, 77, 86, 154, 301, 473, 602, 946, 3109, 3311, 6218, 6622, 21763, 34199, 43526, 68398, 133687, 239393, 267374, 478786, 935809, 1470557, 1871618, 2941114, 10293899, 20587798]

約数ペア:

[(1, 20587798), (2, 10293899), (7, 2941114), (11, 1871618), (14, 1470557), (22, 935809), (43, 478786), (77, 267374), (86, 239393), (154, 133687), (301, 68398), (473, 43526), (602, 34199), (946, 21763), (3109, 6622), (3311, 6218)]