217620459

素因数分解:

$3^3\times 7^1\times {\mathrm{1151431}}^1$

素因数の和:1151447

約数の個数: 16

約数和(自身を含む): 368458240

約数和(自身を除く): 150837781

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1151431, 3454293, 8060017, 10362879, 24180051, 31088637, 72540153, 217620459]

約数ペア:

[(1, 217620459), (3, 72540153), (7, 31088637), (9, 24180051), (21, 10362879), (27, 8060017), (63, 3454293), (189, 1151431)]