18912856

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 36352800

約数和(自身を除く): 17439944

約数列:

[1, 2, 4, 8, 89, 101, 178, 202, 263, 356, 404, 526, 712, 808, 1052, 2104, 8989, 17978, 23407, 26563, 35956, 46814, 53126, 71912, 93628, 106252, 187256, 212504, 2364107, 4728214, 9456428, 18912856]

約数ペア:

[(1, 18912856), (2, 9456428), (4, 4728214), (8, 2364107), (89, 212504), (101, 187256), (178, 106252), (202, 93628), (263, 71912), (356, 53126), (404, 46814), (526, 35956), (712, 26563), (808, 23407), (1052, 17978), (2104, 8989)]