20518572

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^2\times {\mathrm{1249}}^1$

素因数の和:1330

約数の個数: 36

約数和(自身を含む): 49245000

約数和(自身を除く): 28726428

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 222, 444, 1249, 1369, 2498, 2738, 3747, 4107, 4996, 5476, 7494, 8214, 14988, 16428, 46213, 92426, 138639, 184852, 277278, 554556, 1709881, 3419762, 5129643, 6839524, 10259286, 20518572]

約数ペア:

[(1, 20518572), (2, 10259286), (3, 6839524), (4, 5129643), (6, 3419762), (12, 1709881), (37, 554556), (74, 277278), (111, 184852), (148, 138639), (222, 92426), (444, 46213), (1249, 16428), (1369, 14988), (2498, 8214), (2738, 7494), (3747, 5476), (4107, 4996)]