20512101564

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4099141}}^1$

素因数の和:4099290

約数の個数: 36

約数和(自身を含む): 52223069080

約数和(自身を除く): 31710967516

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 5004, 4099141, 8198282, 12297423, 16396564, 24594846, 36892269, 49189692, 73784538, 147569076, 569780599, 1139561198, 1709341797, 2279122396, 3418683594, 5128025391, 6837367188, 10256050782, 20512101564]

約数ペア:

[(1, 20512101564), (2, 10256050782), (3, 6837367188), (4, 5128025391), (6, 3418683594), (9, 2279122396), (12, 1709341797), (18, 1139561198), (36, 569780599), (139, 147569076), (278, 73784538), (417, 49189692), (556, 36892269), (834, 24594846), (1251, 16396564), (1668, 12297423), (2502, 8198282), (5004, 4099141)]