20911366945

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8415037}}^1$

素因数の和:8415120

約数の個数: 16

約数和(自身を含む): 29082371328

約数和(自身を除く): 8171004383

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8415037, 42075185, 58905259, 294526295, 597467627, 2987338135, 4182273389, 20911366945]

約数ペア:

[(1, 20911366945), (5, 4182273389), (7, 2987338135), (35, 597467627), (71, 294526295), (355, 58905259), (497, 42075185), (2485, 8415037)]