18861978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1327}}^1$

素因数の和:1458

約数の個数: 32

約数和(自身を含む): 39776256

約数和(自身を除く): 20914278

約数列:

[1, 2, 3, 6, 23, 46, 69, 103, 138, 206, 309, 618, 1327, 2369, 2654, 3981, 4738, 7107, 7962, 14214, 30521, 61042, 91563, 136681, 183126, 273362, 410043, 820086, 3143663, 6287326, 9430989, 18861978]

約数ペア:

[(1, 18861978), (2, 9430989), (3, 6287326), (6, 3143663), (23, 820086), (46, 410043), (69, 273362), (103, 183126), (138, 136681), (206, 91563), (309, 61042), (618, 30521), (1327, 14214), (2369, 7962), (2654, 7107), (3981, 4738)]