20651554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 39682944

約数和(自身を除く): 19031390

約数列:

[1, 2, 7, 11, 14, 22, 73, 77, 121, 146, 154, 167, 242, 334, 511, 803, 847, 1022, 1169, 1606, 1694, 1837, 2338, 3674, 5621, 8833, 11242, 12191, 12859, 17666, 20207, 24382, 25718, 40414, 61831, 85337, 123662, 134101, 141449, 170674, 268202, 282898, 938707, 1475111, 1877414, 2950222, 10325777, 20651554]

約数ペア:

[(1, 20651554), (2, 10325777), (7, 2950222), (11, 1877414), (14, 1475111), (22, 938707), (73, 282898), (77, 268202), (121, 170674), (146, 141449), (154, 134101), (167, 123662), (242, 85337), (334, 61831), (511, 40414), (803, 25718), (847, 24382), (1022, 20207), (1169, 17666), (1606, 12859), (1694, 12191), (1837, 11242), (2338, 8833), (3674, 5621)]