39902121

素因数分解:

$3^2\times 7^2\times {\mathrm{90481}}^1$

素因数の和:90501

約数の個数: 18

約数和(自身を含む): 67047162

約数和(自身を除く): 27145041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 90481, 271443, 633367, 814329, 1900101, 4433569, 5700303, 13300707, 39902121]

約数ペア:

[(1, 39902121), (3, 13300707), (7, 5700303), (9, 4433569), (21, 1900101), (49, 814329), (63, 633367), (147, 271443), (441, 90481)]