204384915

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{648841}}^1$

素因数の和:648859

約数の個数: 24

約数和(自身を含む): 404877408

約数和(自身を除く): 200492493

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 648841, 1946523, 3244205, 4541887, 5839569, 9732615, 13625661, 22709435, 29197845, 40876983, 68128305, 204384915]

約数ペア:

[(1, 204384915), (3, 68128305), (5, 40876983), (7, 29197845), (9, 22709435), (15, 13625661), (21, 9732615), (35, 5839569), (45, 4541887), (63, 3244205), (105, 1946523), (315, 648841)]