81891285

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{991}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 150085632

約数和(自身を除く): 68194347

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 787, 991, 2361, 2973, 3935, 4955, 5509, 6937, 11805, 14865, 16527, 20811, 27545, 34685, 82635, 104055, 779917, 2339751, 3899585, 5459419, 11698755, 16378257, 27297095, 81891285]

約数ペア:

[(1, 81891285), (3, 27297095), (5, 16378257), (7, 11698755), (15, 5459419), (21, 3899585), (35, 2339751), (105, 779917), (787, 104055), (991, 82635), (2361, 34685), (2973, 27545), (3935, 20811), (4955, 16527), (5509, 14865), (6937, 11805)]