81658305

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21863}}^1$

素因数の和:21957

約数の個数: 24

約数和(自身を含む): 143252928

約数和(自身を除く): 61594623

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 21863, 65589, 109315, 196767, 327945, 983835, 1814629, 5443887, 9073145, 16331661, 27219435, 81658305]

約数ペア:

[(1, 81658305), (3, 27219435), (5, 16331661), (9, 9073145), (15, 5443887), (45, 1814629), (83, 983835), (249, 327945), (415, 196767), (747, 109315), (1245, 65589), (3735, 21863)]