21561933

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{3329}}^1$

素因数の和:3476

約数の個数: 16

約数和(自身を含む): 30689280

約数和(自身を除く): 9127347

約数列:

[1, 3, 17, 51, 127, 381, 2159, 3329, 6477, 9987, 56593, 169779, 422783, 1268349, 7187311, 21561933]

約数ペア:

[(1, 21561933), (3, 7187311), (17, 1268349), (51, 422783), (127, 169779), (381, 56593), (2159, 9987), (3329, 6477)]