128781793

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1\times {\mathrm{1021}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 151615744

約数和(自身を除く): 22833951

約数列:

[1, 7, 37, 259, 487, 1021, 3409, 7147, 18019, 37777, 126133, 264439, 497227, 3480589, 18397399, 128781793]

約数ペア:

[(1, 128781793), (7, 18397399), (37, 3480589), (259, 497227), (487, 264439), (1021, 126133), (3409, 37777), (7147, 18019)]