20817942

素因数分解:

$2^1\times 3^1\times {\mathrm{223}}^1\times {\mathrm{15559}}^1$

素因数の和:15787

約数の個数: 16

約数和(自身を含む): 41825280

約数和(自身を除く): 21007338

約数列:

[1, 2, 3, 6, 223, 446, 669, 1338, 15559, 31118, 46677, 93354, 3469657, 6939314, 10408971, 20817942]

約数ペア:

[(1, 20817942), (2, 10408971), (3, 6939314), (6, 3469657), (223, 93354), (446, 46677), (669, 31118), (1338, 15559)]