20528169

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{719}}^1$

素因数の和:1060

約数の個数: 16

約数和(自身を含む): 28385280

約数和(自身を除く): 7857111

約数列:

[1, 3, 31, 93, 307, 719, 921, 2157, 9517, 22289, 28551, 66867, 220733, 662199, 6842723, 20528169]

約数ペア:

[(1, 20528169), (3, 6842723), (31, 662199), (93, 220733), (307, 66867), (719, 28551), (921, 22289), (2157, 9517)]