21241424

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9551}}^1$

素因数の和:9698

約数の個数: 20

約数和(自身を含む): 41455680

約数和(自身を除く): 20214256

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9551, 19102, 38204, 76408, 152816, 1327589, 2655178, 5310356, 10620712, 21241424]

約数ペア:

[(1, 21241424), (2, 10620712), (4, 5310356), (8, 2655178), (16, 1327589), (139, 152816), (278, 76408), (556, 38204), (1112, 19102), (2224, 9551)]