20901573

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30161}}^1$

素因数の和:30185

約数の個数: 24

約数和(自身を含む): 37642176

約数和(自身を除く): 16740603

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30161, 90483, 211127, 271449, 331771, 633381, 995313, 1900143, 2322397, 2985939, 6967191, 20901573]

約数ペア:

[(1, 20901573), (3, 6967191), (7, 2985939), (9, 2322397), (11, 1900143), (21, 995313), (33, 633381), (63, 331771), (77, 271449), (99, 211127), (231, 90483), (693, 30161)]