21386794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74779}}^1$

素因数の和:74805

約数の個数: 16

約数和(自身を含む): 37689120

約数和(自身を除く): 16302326

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74779, 149558, 822569, 972127, 1645138, 1944254, 10693397, 21386794]

約数ペア:

[(1, 21386794), (2, 10693397), (11, 1944254), (13, 1645138), (22, 972127), (26, 822569), (143, 149558), (286, 74779)]