81620497

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{757}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 95132032

約数和(自身を除く): 13511535

約数列:

[1, 7, 73, 211, 511, 757, 1477, 5299, 15403, 55261, 107821, 159727, 386827, 1118089, 11660071, 81620497]

約数ペア:

[(1, 81620497), (7, 11660071), (73, 1118089), (211, 386827), (511, 159727), (757, 107821), (1477, 55261), (5299, 15403)]