20158831

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2699}}^1$

素因数の和:2814

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 5242769

約数列:

[1, 7, 11, 77, 97, 679, 1067, 2699, 7469, 18893, 29689, 207823, 261803, 1832621, 2879833, 20158831]

約数ペア:

[(1, 20158831), (7, 2879833), (11, 1832621), (77, 261803), (97, 207823), (679, 29689), (1067, 18893), (2699, 7469)]