18207891

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{11971}}^1$

素因数の和:12003

約数の個数: 18

約数和(自身を含む): 28481388

約数和(自身を除く): 10273497

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 11971, 35913, 107739, 155623, 466869, 1400607, 2023099, 6069297, 18207891]

約数ペア:

[(1, 18207891), (3, 6069297), (9, 2023099), (13, 1400607), (39, 466869), (117, 155623), (169, 107739), (507, 35913), (1521, 11971)]