18985870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{46307}}^1$

素因数の和:46355

約数の個数: 16

約数和(自身を含む): 35008848

約数和(自身を除く): 16022978

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 46307, 92614, 231535, 463070, 1898587, 3797174, 9492935, 18985870]

約数ペア:

[(1, 18985870), (2, 9492935), (5, 3797174), (10, 1898587), (41, 463070), (82, 231535), (205, 92614), (410, 46307)]