221745013

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{7573}}^1$

素因数の和:7716

約数の個数: 16

約数和(自身を含む): 261757440

約数和(自身を除く): 40012427

約数列:

[1, 7, 47, 89, 329, 623, 4183, 7573, 29281, 53011, 355931, 673997, 2491517, 4717979, 31677859, 221745013]

約数ペア:

[(1, 221745013), (7, 31677859), (47, 4717979), (89, 2491517), (329, 673997), (623, 355931), (4183, 53011), (7573, 29281)]