21110085

素因数分解:

$3^3\times 5^1\times {\mathrm{156371}}^1$

素因数の和:156385

約数の個数: 16

約数和(自身を含む): 37529280

約数和(自身を除く): 16419195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 156371, 469113, 781855, 1407339, 2345565, 4222017, 7036695, 21110085]

約数ペア:

[(1, 21110085), (3, 7036695), (5, 4222017), (9, 2345565), (15, 1407339), (27, 781855), (45, 469113), (135, 156371)]