81126815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{210719}}^1$

素因数の和:210742

約数の個数: 16

約数和(自身を含む): 121374720

約数和(自身を除く): 40247905

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 210719, 1053595, 1475033, 2317909, 7375165, 11589545, 16225363, 81126815]

約数ペア:

[(1, 81126815), (5, 16225363), (7, 11589545), (11, 7375165), (35, 2317909), (55, 1475033), (77, 1053595), (385, 210719)]