11721717

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2777}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 19646016

約数和(自身を除く): 7924299

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 2777, 4221, 8331, 19439, 24993, 58317, 174951, 186059, 558177, 1302413, 1674531, 3907239, 11721717]

約数ペア:

[(1, 11721717), (3, 3907239), (7, 1674531), (9, 1302413), (21, 558177), (63, 186059), (67, 174951), (201, 58317), (469, 24993), (603, 19439), (1407, 8331), (2777, 4221)]