18640245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5623}}^1$

素因数の和:5661

約数の個数: 32

約数和(自身を含む): 34013952

約数和(自身を除く): 15373707

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 5623, 16869, 28115, 73099, 84345, 95591, 219297, 286773, 365495, 477955, 1096485, 1242683, 1433865, 3728049, 6213415, 18640245]

約数ペア:

[(1, 18640245), (3, 6213415), (5, 3728049), (13, 1433865), (15, 1242683), (17, 1096485), (39, 477955), (51, 365495), (65, 286773), (85, 219297), (195, 95591), (221, 84345), (255, 73099), (663, 28115), (1105, 16869), (3315, 5623)]