81299519

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{4051}}^1$

素因数の和:4166

約数の個数: 16

約数和(自身を含む): 96470016

約数和(自身を除く): 15170497

約数列:

[1, 7, 47, 61, 329, 427, 2867, 4051, 20069, 28357, 190397, 247111, 1332779, 1729777, 11614217, 81299519]

約数ペア:

[(1, 81299519), (7, 11614217), (47, 1729777), (61, 1332779), (329, 247111), (427, 190397), (2867, 28357), (4051, 20069)]