78857121

素因数分解:

$3^1\times 7^2\times {\mathrm{536443}}^1$

素因数の和:536460

約数の個数: 12

約数和(自身を含む): 122309232

約数和(自身を除く): 43452111

約数列:

[1, 3, 7, 21, 49, 147, 536443, 1609329, 3755101, 11265303, 26285707, 78857121]

約数ペア:

[(1, 78857121), (3, 26285707), (7, 11265303), (21, 3755101), (49, 1609329), (147, 536443)]