21742167

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{4139}}^1$

素因数の和:4262

約数の個数: 16

約数和(自身を含む): 31000320

約数和(自身を除く): 9258153

約数列:

[1, 3, 17, 51, 103, 309, 1751, 4139, 5253, 12417, 70363, 211089, 426317, 1278951, 7247389, 21742167]

約数ペア:

[(1, 21742167), (3, 7247389), (17, 1278951), (51, 426317), (103, 211089), (309, 70363), (1751, 12417), (4139, 5253)]