21500087

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2287}}^1$

素因数の和:2390

約数の個数: 16

約数和(自身を含む): 26357760

約数和(自身を除く): 4857673

約数列:

[1, 7, 17, 79, 119, 553, 1343, 2287, 9401, 16009, 38879, 180673, 272153, 1264711, 3071441, 21500087]

約数ペア:

[(1, 21500087), (7, 3071441), (17, 1264711), (79, 272153), (119, 180673), (553, 38879), (1343, 16009), (2287, 9401)]