19765804

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 35437248

約数和(自身を除く): 15671444

約数列:

[1, 2, 4, 67, 131, 134, 262, 268, 524, 563, 1126, 2252, 8777, 17554, 35108, 37721, 73753, 75442, 147506, 150884, 295012, 4941451, 9882902, 19765804]

約数ペア:

[(1, 19765804), (2, 9882902), (4, 4941451), (67, 295012), (131, 150884), (134, 147506), (262, 75442), (268, 73753), (524, 37721), (563, 35108), (1126, 17554), (2252, 8777)]