21000273867

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{7135669}}^1$

素因数の和:7135787

約数の個数: 16

約数和(自身を含む): 31396948000

約数和(自身を除く): 10396674133

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 7135669, 21407007, 64221021, 192663063, 777787921, 2333363763, 7000091289, 21000273867]

約数ペア:

[(1, 21000273867), (3, 7000091289), (9, 2333363763), (27, 777787921), (109, 192663063), (327, 64221021), (981, 21407007), (2943, 7135669)]