2021812555

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{2087}}^1$

素因数の和:2499

約数の個数: 32

約数和(自身を含む): 2814289920

約数和(自身を除く): 792477365

約数列:

[1, 5, 7, 35, 89, 311, 445, 623, 1555, 2087, 2177, 3115, 10435, 10885, 14609, 27679, 73045, 138395, 185743, 193753, 649057, 928715, 968765, 1300201, 3245285, 4543399, 6501005, 22716995, 57766073, 288830365, 404362511, 2021812555]

約数ペア:

[(1, 2021812555), (5, 404362511), (7, 288830365), (35, 57766073), (89, 22716995), (311, 6501005), (445, 4543399), (623, 3245285), (1555, 1300201), (2087, 968765), (2177, 928715), (3115, 649057), (10435, 193753), (10885, 185743), (14609, 138395), (27679, 73045)]