128784999

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{60719}}^1$

素因数の和:60830

約数の個数: 16

約数和(自身を含む): 198190080

約数和(自身を除く): 69405081

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 60719, 182157, 425033, 1275099, 6132619, 18397857, 42928333, 128784999]

約数ペア:

[(1, 128784999), (3, 42928333), (7, 18397857), (21, 6132619), (101, 1275099), (303, 425033), (707, 182157), (2121, 60719)]