21745659

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12967}}^1$

素因数の和:13026

約数の個数: 16

約数和(自身を含む): 31953152

約数和(自身を除く): 10207493

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12967, 38901, 168571, 505713, 557581, 1672743, 7248553, 21745659]

約数ペア:

[(1, 21745659), (3, 7248553), (13, 1672743), (39, 557581), (43, 505713), (129, 168571), (559, 38901), (1677, 12967)]