399038398

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{1648919}}^1$

素因数の和:1648943

約数の個数: 12

約数和(自身を含む): 657919080

約数和(自身を除く): 258880682

約数列:

[1, 2, 11, 22, 121, 242, 1648919, 3297838, 18138109, 36276218, 199519199, 399038398]

約数ペア:

[(1, 399038398), (2, 199519199), (11, 36276218), (22, 18138109), (121, 3297838), (242, 1648919)]