81865399

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{22621}}^1$

素因数の和:22686

約数の個数: 16

約数和(自身を含む): 104242176

約数和(自身を除く): 22376777

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 22621, 158347, 248831, 1063187, 1741817, 7442309, 11695057, 81865399]

約数ペア:

[(1, 81865399), (7, 11695057), (11, 7442309), (47, 1741817), (77, 1063187), (329, 248831), (517, 158347), (3619, 22621)]