398266

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 16

約数和(自身を含む): 668448

約数和(自身を除く): 270182

約数列:

[1, 2, 11, 22, 43, 86, 421, 473, 842, 946, 4631, 9262, 18103, 36206, 199133, 398266]

約数ペア:

[(1, 398266), (2, 199133), (11, 36206), (22, 18103), (43, 9262), (86, 4631), (421, 946), (473, 842)]