81621134

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{9067}}^1$

素因数の和:9719

約数の個数: 16

約数和(自身を含む): 140155008

約数和(自身を除く): 58533874

約数列:

[1, 2, 7, 14, 643, 1286, 4501, 9002, 9067, 18134, 63469, 126938, 5830081, 11660162, 40810567, 81621134]

約数ペア:

[(1, 81621134), (2, 40810567), (7, 11660162), (14, 5830081), (643, 126938), (1286, 63469), (4501, 18134), (9002, 9067)]