21272085

素因数分解:

$3^3\times 5^1\times {\mathrm{157571}}^1$

素因数の和:157585

約数の個数: 16

約数和(自身を含む): 37817280

約数和(自身を除く): 16545195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157571, 472713, 787855, 1418139, 2363565, 4254417, 7090695, 21272085]

約数ペア:

[(1, 21272085), (3, 7090695), (5, 4254417), (9, 2363565), (15, 1418139), (27, 787855), (45, 472713), (135, 157571)]