20971986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1439}}^1$

素因数の和:1798

約数の個数: 32

約数和(自身を含む): 48107520

約数和(自身を除く): 27135534

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 347, 694, 1041, 1439, 2082, 2429, 2878, 4317, 4858, 7287, 8634, 10073, 14574, 20146, 30219, 60438, 499333, 998666, 1497999, 2995998, 3495331, 6990662, 10485993, 20971986]

約数ペア:

[(1, 20971986), (2, 10485993), (3, 6990662), (6, 3495331), (7, 2995998), (14, 1497999), (21, 998666), (42, 499333), (347, 60438), (694, 30219), (1041, 20146), (1439, 14574), (2082, 10073), (2429, 8634), (2878, 7287), (4317, 4858)]