28613991

素因数分解:

$3^1\times 7^2\times {\mathrm{194653}}^1$

素因数の和:194670

約数の個数: 12

約数和(自身を含む): 44381112

約数和(自身を除く): 15767121

約数列:

[1, 3, 7, 21, 49, 147, 194653, 583959, 1362571, 4087713, 9537997, 28613991]

約数ペア:

[(1, 28613991), (3, 9537997), (7, 4087713), (21, 1362571), (49, 583959), (147, 194653)]