20108538

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 45319560

約数和(自身を除く): 25211022

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 109, 111, 218, 222, 277, 327, 333, 554, 654, 666, 831, 981, 1662, 1962, 2493, 4033, 4986, 8066, 10249, 12099, 20498, 24198, 30193, 30747, 36297, 60386, 61494, 72594, 90579, 92241, 181158, 184482, 271737, 543474, 1117141, 2234282, 3351423, 6702846, 10054269, 20108538]

約数ペア:

[(1, 20108538), (2, 10054269), (3, 6702846), (6, 3351423), (9, 2234282), (18, 1117141), (37, 543474), (74, 271737), (109, 184482), (111, 181158), (218, 92241), (222, 90579), (277, 72594), (327, 61494), (333, 60386), (554, 36297), (654, 30747), (666, 30193), (831, 24198), (981, 20498), (1662, 12099), (1962, 10249), (2493, 8066), (4033, 4986)]