2021563257

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{319817}}^1$

素因数の和:319877

約数の個数: 24

約数和(自身を含む): 3208414176

約数和(自身を除く): 1186850919

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 319817, 959451, 2238719, 6716157, 13752131, 15671033, 41256393, 47013099, 96264917, 288794751, 673854419, 2021563257]

約数ペア:

[(1, 2021563257), (3, 673854419), (7, 288794751), (21, 96264917), (43, 47013099), (49, 41256393), (129, 15671033), (147, 13752131), (301, 6716157), (903, 2238719), (2107, 959451), (6321, 319817)]