18865904

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{28759}}^1$

素因数の和:28808

約数の個数: 20

約数和(自身を含む): 37445520

約数和(自身を除く): 18579616

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 28759, 57518, 115036, 230072, 460144, 1179119, 2358238, 4716476, 9432952, 18865904]

約数ペア:

[(1, 18865904), (2, 9432952), (4, 4716476), (8, 2358238), (16, 1179119), (41, 460144), (82, 230072), (164, 115036), (328, 57518), (656, 28759)]