21013798

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{62171}}^1$

素因数の和:62199

約数の個数: 12

約数和(自身を含む): 34132428

約数和(自身を除く): 13118630

約数列:

[1, 2, 13, 26, 169, 338, 62171, 124342, 808223, 1616446, 10506899, 21013798]

約数ペア:

[(1, 21013798), (2, 10506899), (13, 1616446), (26, 808223), (169, 124342), (338, 62171)]