2021025808

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{566431}}^1$

素因数の和:566662

約数の個数: 20

約数和(自身を含む): 3933303808

約数和(自身を除く): 1912278000

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 566431, 1132862, 2265724, 4531448, 9062896, 126314113, 252628226, 505256452, 1010512904, 2021025808]

約数ペア:

[(1, 2021025808), (2, 1010512904), (4, 505256452), (8, 252628226), (16, 126314113), (223, 9062896), (446, 4531448), (892, 2265724), (1784, 1132862), (3568, 566431)]