81231915

素因数分解:

$3^1\times 5^1\times {\mathrm{751}}^1\times {\mathrm{7211}}^1$

素因数の和:7970

約数の個数: 16

約数和(自身を含む): 130162176

約数和(自身を除く): 48930261

約数列:

[1, 3, 5, 15, 751, 2253, 3755, 7211, 11265, 21633, 36055, 108165, 5415461, 16246383, 27077305, 81231915]

約数ペア:

[(1, 81231915), (3, 27077305), (5, 16246383), (15, 5415461), (751, 108165), (2253, 36055), (3755, 21633), (7211, 11265)]