20682321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{907}}^1$

素因数の和:1612

約数の個数: 16

約数和(自身を含む): 30160128

約数和(自身を除く): 9477807

約数列:

[1, 3, 11, 33, 691, 907, 2073, 2721, 7601, 9977, 22803, 29931, 626737, 1880211, 6894107, 20682321]

約数ペア:

[(1, 20682321), (3, 6894107), (11, 1880211), (33, 626737), (691, 29931), (907, 22803), (2073, 9977), (2721, 7601)]