20209881

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{1117}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 27869504

約数和(自身を除く): 7659623

約数列:

[1, 3, 37, 111, 163, 489, 1117, 3351, 6031, 18093, 41329, 123987, 182071, 546213, 6736627, 20209881]

約数ペア:

[(1, 20209881), (3, 6736627), (37, 546213), (111, 182071), (163, 123987), (489, 41329), (1117, 18093), (3351, 6031)]