21642201

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2663}}^1$

素因数の和:2722

約数の個数: 32

約数和(自身を含む): 37509120

約数和(自身を除く): 15866919

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2663, 2709, 7989, 8127, 18641, 23967, 55923, 71901, 114509, 167769, 343527, 503307, 801563, 1030581, 2404689, 3091743, 7214067, 21642201]

約数ペア:

[(1, 21642201), (3, 7214067), (7, 3091743), (9, 2404689), (21, 1030581), (27, 801563), (43, 503307), (63, 343527), (129, 167769), (189, 114509), (301, 71901), (387, 55923), (903, 23967), (1161, 18641), (2663, 8127), (2709, 7989)]