20321719

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1709}}^1$

素因数の和:1790

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3317321

約数列:

[1, 11, 23, 47, 253, 517, 1081, 1709, 11891, 18799, 39307, 80323, 432377, 883553, 1847429, 20321719]

約数ペア:

[(1, 20321719), (11, 1847429), (23, 883553), (47, 432377), (253, 80323), (517, 39307), (1081, 18799), (1709, 11891)]