20851185195

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1055489}}^1$

素因数の和:1055939

約数の個数: 24

約数和(自身を含む): 36224416800

約数和(自身を除く): 15373231605

約数列:

[1, 3, 5, 9, 15, 45, 439, 1317, 2195, 3951, 6585, 19755, 1055489, 3166467, 5277445, 9499401, 15832335, 47497005, 463359671, 1390079013, 2316798355, 4170237039, 6950395065, 20851185195]

約数ペア:

[(1, 20851185195), (3, 6950395065), (5, 4170237039), (9, 2316798355), (15, 1390079013), (45, 463359671), (439, 47497005), (1317, 15832335), (2195, 9499401), (3951, 5277445), (6585, 3166467), (19755, 1055489)]