20475948

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 29166036

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 107, 111, 148, 214, 222, 321, 428, 431, 444, 642, 862, 1284, 1293, 1724, 2586, 3959, 5172, 7918, 11877, 15836, 15947, 23754, 31894, 46117, 47508, 47841, 63788, 92234, 95682, 138351, 184468, 191364, 276702, 553404, 1706329, 3412658, 5118987, 6825316, 10237974, 20475948]

約数ペア:

[(1, 20475948), (2, 10237974), (3, 6825316), (4, 5118987), (6, 3412658), (12, 1706329), (37, 553404), (74, 276702), (107, 191364), (111, 184468), (148, 138351), (214, 95682), (222, 92234), (321, 63788), (428, 47841), (431, 47508), (444, 46117), (642, 31894), (862, 23754), (1284, 15947), (1293, 15836), (1724, 11877), (2586, 7918), (3959, 5172)]