21401968

素因数分解:

$2^4\times 7^1\times {\mathrm{191089}}^1$

素因数の和:191104

約数の個数: 20

約数和(自身を含む): 47390320

約数和(自身を除く): 25988352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191089, 382178, 764356, 1337623, 1528712, 2675246, 3057424, 5350492, 10700984, 21401968]

約数ペア:

[(1, 21401968), (2, 10700984), (4, 5350492), (7, 3057424), (8, 2675246), (14, 1528712), (16, 1337623), (28, 764356), (56, 382178), (112, 191089)]