217809321

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{6967}}^1$

素因数の和:7600

約数の個数: 16

約数和(自身を含む): 308041344

約数和(自身を除く): 90232023

約数列:

[1, 3, 17, 51, 613, 1839, 6967, 10421, 20901, 31263, 118439, 355317, 4270771, 12812313, 72603107, 217809321]

約数ペア:

[(1, 217809321), (3, 72603107), (17, 12812313), (51, 4270771), (613, 355317), (1839, 118439), (6967, 31263), (10421, 20901)]