81189647

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 106030080

約数和(自身を除く): 24840433

約数列:

[1, 7, 11, 29, 77, 103, 203, 319, 353, 721, 1133, 2233, 2471, 2987, 3883, 7931, 10237, 20909, 27181, 32857, 36359, 71659, 112607, 229999, 254513, 399949, 788249, 1054411, 2799643, 7380877, 11598521, 81189647]

約数ペア:

[(1, 81189647), (7, 11598521), (11, 7380877), (29, 2799643), (77, 1054411), (103, 788249), (203, 399949), (319, 254513), (353, 229999), (721, 112607), (1133, 71659), (2233, 36359), (2471, 32857), (2987, 27181), (3883, 20909), (7931, 10237)]