20446671

素因数分解:

$3^1\times 7^2\times {\mathrm{367}}^1\times {\mathrm{379}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 31883520

約数和(自身を除く): 11436849

約数列:

[1, 3, 7, 21, 49, 147, 367, 379, 1101, 1137, 2569, 2653, 7707, 7959, 17983, 18571, 53949, 55713, 139093, 417279, 973651, 2920953, 6815557, 20446671]

約数ペア:

[(1, 20446671), (3, 6815557), (7, 2920953), (21, 973651), (49, 417279), (147, 139093), (367, 55713), (379, 53949), (1101, 18571), (1137, 17983), (2569, 7959), (2653, 7707)]