208290411

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{32099}}^1$

素因数の和:32215

約数の個数: 24

約数和(自身を含む): 347193600

約数和(自身を除く): 138903189

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 32099, 96297, 224693, 288891, 674079, 2022237, 3306197, 9918591, 23143379, 29755773, 69430137, 208290411]

約数ペア:

[(1, 208290411), (3, 69430137), (7, 29755773), (9, 23143379), (21, 9918591), (63, 3306197), (103, 2022237), (309, 674079), (721, 288891), (927, 224693), (2163, 96297), (6489, 32099)]