21157746

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1270

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 23355534

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 139, 278, 417, 834, 1103, 2206, 3197, 3309, 6394, 6618, 9591, 19182, 25369, 50738, 76107, 152214, 153317, 306634, 459951, 919902, 3526291, 7052582, 10578873, 21157746]

約数ペア:

[(1, 21157746), (2, 10578873), (3, 7052582), (6, 3526291), (23, 919902), (46, 459951), (69, 306634), (138, 153317), (139, 152214), (278, 76107), (417, 50738), (834, 25369), (1103, 19182), (2206, 9591), (3197, 6618), (3309, 6394)]