18385653

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2521}}^1$

素因数の和:2565

約数の個数: 32

約数和(自身を含む): 30506112

約数和(自身を除く): 12120459

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 2521, 7293, 7563, 27731, 32773, 42857, 83193, 98319, 128571, 360503, 471427, 557141, 1081509, 1414281, 1671423, 6128551, 18385653]

約数ペア:

[(1, 18385653), (3, 6128551), (11, 1671423), (13, 1414281), (17, 1081509), (33, 557141), (39, 471427), (51, 360503), (143, 128571), (187, 98319), (221, 83193), (429, 42857), (561, 32773), (663, 27731), (2431, 7563), (2521, 7293)]