21597208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158803}}^1$

素因数の和:158826

約数の個数: 16

約数和(自身を含む): 42877080

約数和(自身を除く): 21279872

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158803, 317606, 635212, 1270424, 2699651, 5399302, 10798604, 21597208]

約数ペア:

[(1, 21597208), (2, 10798604), (4, 5399302), (8, 2699651), (17, 1270424), (34, 635212), (68, 317606), (136, 158803)]