21137409

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{46051}}^1$

素因数の和:46077

約数の個数: 16

約数和(自身を含む): 33157440

約数和(自身を除く): 12020031

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 46051, 138153, 414459, 782867, 1243377, 2348601, 7045803, 21137409]

約数ペア:

[(1, 21137409), (3, 7045803), (9, 2348601), (17, 1243377), (27, 782867), (51, 414459), (153, 138153), (459, 46051)]