20705164

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 37368576

約数和(自身を除く): 16663412

約数列:

[1, 2, 4, 41, 82, 164, 191, 382, 661, 764, 1322, 2644, 7831, 15662, 27101, 31324, 54202, 108404, 126251, 252502, 505004, 5176291, 10352582, 20705164]

約数ペア:

[(1, 20705164), (2, 10352582), (4, 5176291), (41, 505004), (82, 252502), (164, 126251), (191, 108404), (382, 54202), (661, 31324), (764, 27101), (1322, 15662), (2644, 7831)]