20463121

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2819}}^1$

素因数の和:2904

約数の個数: 16

約数和(自身を含む): 25176960

約数和(自身を除く): 4713839

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2819, 7259, 19733, 47923, 171959, 335461, 1203713, 2923303, 20463121]

約数ペア:

[(1, 20463121), (7, 2923303), (17, 1203713), (61, 335461), (119, 171959), (427, 47923), (1037, 19733), (2819, 7259)]