81869715

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{49171}}^1$

素因数の和:49219

約数の個数: 24

約数和(自身を含む): 145745808

約数和(自身を除く): 63876093

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 49171, 147513, 245855, 442539, 737565, 1819327, 2212695, 5457981, 9096635, 16373943, 27289905, 81869715]

約数ペア:

[(1, 81869715), (3, 27289905), (5, 16373943), (9, 9096635), (15, 5457981), (37, 2212695), (45, 1819327), (111, 737565), (185, 442539), (333, 245855), (555, 147513), (1665, 49171)]