198966788

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{2657}}^1$

素因数の和:2951

約数の個数: 24

約数和(自身を含む): 353737272

約数和(自身を除く): 154770484

約数列:

[1, 2, 4, 97, 193, 194, 386, 388, 772, 2657, 5314, 10628, 18721, 37442, 74884, 257729, 512801, 515458, 1025602, 1030916, 2051204, 49741697, 99483394, 198966788]

約数ペア:

[(1, 198966788), (2, 99483394), (4, 49741697), (97, 2051204), (193, 1030916), (194, 1025602), (386, 515458), (388, 512801), (772, 257729), (2657, 74884), (5314, 37442), (10628, 18721)]