19138689

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 28551744

約数和(自身を除く): 9413055

約数列:

[1, 3, 9, 61, 71, 183, 213, 491, 549, 639, 1473, 4331, 4419, 12993, 29951, 34861, 38979, 89853, 104583, 269559, 313749, 2126521, 6379563, 19138689]

約数ペア:

[(1, 19138689), (3, 6379563), (9, 2126521), (61, 313749), (71, 269559), (183, 104583), (213, 89853), (491, 38979), (549, 34861), (639, 29951), (1473, 12993), (4331, 4419)]