20398317

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5479}}^1$

素因数の和:5572

約数の個数: 16

約数和(自身を含む): 29197440

約数和(自身を除く): 8799123

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5479, 16437, 93143, 279429, 399967, 1199901, 6799439, 20398317]

約数ペア:

[(1, 20398317), (3, 6799439), (17, 1199901), (51, 399967), (73, 279429), (219, 93143), (1241, 16437), (3723, 5479)]