81143145

素因数分解:

$3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3461}}^1$

素因数の和:3993

約数の個数: 24

約数和(自身を含む): 140958792

約数和(自身を除く): 59815647

約数列:

[1, 3, 5, 9, 15, 45, 521, 1563, 2605, 3461, 4689, 7815, 10383, 17305, 23445, 31149, 51915, 155745, 1803181, 5409543, 9015905, 16228629, 27047715, 81143145]

約数ペア:

[(1, 81143145), (3, 27047715), (5, 16228629), (9, 9015905), (15, 5409543), (45, 1803181), (521, 155745), (1563, 51915), (2605, 31149), (3461, 23445), (4689, 17305), (7815, 10383)]