20742868

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 36997352

約数和(自身を除く): 16254484

約数列:

[1, 2, 4, 97, 193, 194, 277, 386, 388, 554, 772, 1108, 18721, 26869, 37442, 53461, 53738, 74884, 106922, 107476, 213844, 5185717, 10371434, 20742868]

約数ペア:

[(1, 20742868), (2, 10371434), (4, 5185717), (97, 213844), (193, 107476), (194, 106922), (277, 74884), (386, 53738), (388, 53461), (554, 37442), (772, 26869), (1108, 18721)]