21053870

素因数分解:

$2^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{4567}}^1$

素因数の和:5035

約数の個数: 16

約数和(自身を含む): 37987488

約数和(自身を除く): 16933618

約数列:

[1, 2, 5, 10, 461, 922, 2305, 4567, 4610, 9134, 22835, 45670, 2105387, 4210774, 10526935, 21053870]

約数ペア:

[(1, 21053870), (2, 10526935), (5, 4210774), (10, 2105387), (461, 45670), (922, 22835), (2305, 9134), (4567, 4610)]