20565748

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^2\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 36

約数和(自身を含む): 42038752

約数和(自身を除く): 21473004

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 211, 236, 413, 422, 826, 844, 1477, 1652, 2954, 3481, 5908, 6962, 12449, 13924, 24367, 24898, 48734, 49796, 87143, 97468, 174286, 348572, 734491, 1468982, 2937964, 5141437, 10282874, 20565748]

約数ペア:

[(1, 20565748), (2, 10282874), (4, 5141437), (7, 2937964), (14, 1468982), (28, 734491), (59, 348572), (118, 174286), (211, 97468), (236, 87143), (413, 49796), (422, 48734), (826, 24898), (844, 24367), (1477, 13924), (1652, 12449), (2954, 6962), (3481, 5908)]