18638127

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{10303}}^1$

素因数の和:10379

約数の個数: 16

約数和(自身を含む): 28026880

約数和(自身を除く): 9388753

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 10303, 30909, 92727, 278181, 690301, 2070903, 6212709, 18638127]

約数ペア:

[(1, 18638127), (3, 6212709), (9, 2070903), (27, 690301), (67, 278181), (201, 92727), (603, 30909), (1809, 10303)]