217668891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3793}}^1$

素因数の和:3891

約数の個数: 32

約数和(自身を含む): 332172288

約数和(自身を除く): 114503397

約数列:

[1, 3, 11, 33, 37, 47, 111, 141, 407, 517, 1221, 1551, 1739, 3793, 5217, 11379, 19129, 41723, 57387, 125169, 140341, 178271, 421023, 534813, 1543751, 1960981, 4631253, 5882943, 6596027, 19788081, 72556297, 217668891]

約数ペア:

[(1, 217668891), (3, 72556297), (11, 19788081), (33, 6596027), (37, 5882943), (47, 4631253), (111, 1960981), (141, 1543751), (407, 534813), (517, 421023), (1221, 178271), (1551, 140341), (1739, 125169), (3793, 57387), (5217, 41723), (11379, 19129)]