21665254

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12437}}^1$

素因数の和:12519

約数の個数: 16

約数和(自身を含む): 35522928

約数和(自身を除く): 13857674

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12437, 24874, 161681, 323362, 833279, 1666558, 10832627, 21665254]

約数ペア:

[(1, 21665254), (2, 10832627), (13, 1666558), (26, 833279), (67, 323362), (134, 161681), (871, 24874), (1742, 12437)]