646434

素因数分解:

$2^1\times 3^3\times {\mathrm{11971}}^1$

素因数の和:11982

約数の個数: 16

約数和(自身を含む): 1436640

約数和(自身を除く): 790206

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 11971, 23942, 35913, 71826, 107739, 215478, 323217, 646434]

約数ペア:

[(1, 646434), (2, 323217), (3, 215478), (6, 107739), (9, 71826), (18, 35913), (27, 23942), (54, 11971)]