21260146

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{919}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 32788800

約数和(自身を除く): 11528654

約数列:

[1, 2, 43, 86, 269, 538, 919, 1838, 11567, 23134, 39517, 79034, 247211, 494422, 10630073, 21260146]

約数ペア:

[(1, 21260146), (2, 10630073), (43, 494422), (86, 247211), (269, 79034), (538, 39517), (919, 23134), (1838, 11567)]