71340913

素因数分解:

$7^4\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:762

約数の個数: 20

約数和(自身を含む): 85284848

約数和(自身を除く): 13943935

約数列:

[1, 7, 43, 49, 301, 343, 691, 2107, 2401, 4837, 14749, 29713, 33859, 103243, 207991, 237013, 1455937, 1659091, 10191559, 71340913]

約数ペア:

[(1, 71340913), (7, 10191559), (43, 1659091), (49, 1455937), (301, 237013), (343, 207991), (691, 103243), (2107, 33859), (2401, 29713), (4837, 14749)]