13688757

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{9941}}^1$

素因数の和:9970

約数の個数: 20

約数和(自身を含む): 21653676

約数和(自身を除く): 7964919

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 9941, 29823, 89469, 168997, 268407, 506991, 805221, 1520973, 4562919, 13688757]

約数ペア:

[(1, 13688757), (3, 4562919), (9, 1520973), (17, 805221), (27, 506991), (51, 268407), (81, 168997), (153, 89469), (459, 29823), (1377, 9941)]