81904665

素因数分解:

$3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{36161}}^1$

素因数の和:36320

約数の個数: 16

約数和(自身を含む): 131918976

約数和(自身を除く): 50014311

約数列:

[1, 3, 5, 15, 151, 453, 755, 2265, 36161, 108483, 180805, 542415, 5460311, 16380933, 27301555, 81904665]

約数ペア:

[(1, 81904665), (3, 27301555), (5, 16380933), (15, 5460311), (151, 542415), (453, 180805), (755, 108483), (2265, 36161)]