128842777

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1\times {\mathrm{653}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 149928192

約数和(自身を除く): 21085415

約数列:

[1, 7, 71, 397, 497, 653, 2779, 4571, 28187, 46363, 197309, 259241, 324541, 1814687, 18406111, 128842777]

約数ペア:

[(1, 128842777), (7, 18406111), (71, 1814687), (397, 324541), (497, 259241), (653, 197309), (2779, 46363), (4571, 28187)]