20387416

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2411}}^1$

素因数の和:2575

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 23607464

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2411, 4228, 4822, 8456, 9644, 16877, 19288, 33754, 67508, 135016, 364061, 728122, 1456244, 2548427, 2912488, 5096854, 10193708, 20387416]

約数ペア:

[(1, 20387416), (2, 10193708), (4, 5096854), (7, 2912488), (8, 2548427), (14, 1456244), (28, 728122), (56, 364061), (151, 135016), (302, 67508), (604, 33754), (1057, 19288), (1208, 16877), (2114, 9644), (2411, 8456), (4228, 4822)]