217881363

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{45307}}^1$

素因数の和:45546

約数の個数: 16

約数和(自身を含む): 333466880

約数和(自身を除く): 115585517

約数列:

[1, 3, 7, 21, 229, 687, 1603, 4809, 45307, 135921, 317149, 951447, 10375303, 31125909, 72627121, 217881363]

約数ペア:

[(1, 217881363), (3, 72627121), (7, 31125909), (21, 10375303), (229, 951447), (687, 317149), (1603, 135921), (4809, 45307)]