16556481

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{8887}}^1$

素因数の和:8922

約数の個数: 20

約数和(自身を含む): 25810752

約数和(自身を除く): 9254271

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 8887, 26661, 79983, 204401, 239949, 613203, 719847, 1839609, 5518827, 16556481]

約数ペア:

[(1, 16556481), (3, 5518827), (9, 1839609), (23, 719847), (27, 613203), (69, 239949), (81, 204401), (207, 79983), (621, 26661), (1863, 8887)]