20976669

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8999}}^1$

素因数の和:9049

約数の個数: 24

約数和(自身を含む): 35568000

約数和(自身を除く): 14591331

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8999, 26997, 62993, 80991, 188979, 332963, 566937, 998889, 2330741, 2996667, 6992223, 20976669]

約数ペア:

[(1, 20976669), (3, 6992223), (7, 2996667), (9, 2330741), (21, 998889), (37, 566937), (63, 332963), (111, 188979), (259, 80991), (333, 62993), (777, 26997), (2331, 8999)]