71720691

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{17881}}^1$

素因数の和:18082

約数の個数: 16

約数和(自身を含む): 109867008

約数和(自身を除く): 38146317

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 17881, 53643, 125167, 375501, 3415271, 10245813, 23906897, 71720691]

約数ペア:

[(1, 71720691), (3, 23906897), (7, 10245813), (21, 3415271), (191, 375501), (573, 125167), (1337, 53643), (4011, 17881)]