20982008

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20021}}^1$

素因数の和:20158

約数の個数: 16

約数和(自身を含む): 39643560

約数和(自身を除く): 18661552

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20021, 40042, 80084, 160168, 2622751, 5245502, 10491004, 20982008]

約数ペア:

[(1, 20982008), (2, 10491004), (4, 5245502), (8, 2622751), (131, 160168), (262, 80084), (524, 40042), (1048, 20021)]