20957008

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{14717}}^1$

素因数の和:14814

約数の個数: 20

約数和(自身を含む): 41063220

約数和(自身を除く): 20106212

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 14717, 29434, 58868, 117736, 235472, 1309813, 2619626, 5239252, 10478504, 20957008]

約数ペア:

[(1, 20957008), (2, 10478504), (4, 5239252), (8, 2619626), (16, 1309813), (89, 235472), (178, 117736), (356, 58868), (712, 29434), (1424, 14717)]