81504178

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{135389}}^1$

素因数の和:135441

約数の個数: 16

約数和(自身を含む): 142971840

約数和(自身を除く): 61467662

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 135389, 270778, 947723, 1895446, 5821727, 11643454, 40752089, 81504178]

約数ペア:

[(1, 81504178), (2, 40752089), (7, 11643454), (14, 5821727), (43, 1895446), (86, 947723), (301, 270778), (602, 135389)]