18427887

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{55339}}^1$

素因数の和:55382

約数の個数: 12

約数和(自身を含む): 27337960

約数和(自身を除く): 8910073

約数列:

[1, 3, 9, 37, 111, 333, 55339, 166017, 498051, 2047543, 6142629, 18427887]

約数ペア:

[(1, 18427887), (3, 6142629), (9, 2047543), (37, 498051), (111, 166017), (333, 55339)]