81167212

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{7229}}^1$

素因数の和:7641

約数の個数: 24

約数和(自身を含む): 162761760

約数和(自身を除く): 81594548

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 2807, 5614, 7229, 11228, 14458, 28916, 50603, 101206, 202412, 2898829, 5797658, 11595316, 20291803, 40583606, 81167212]

約数ペア:

[(1, 81167212), (2, 40583606), (4, 20291803), (7, 11595316), (14, 5797658), (28, 2898829), (401, 202412), (802, 101206), (1604, 50603), (2807, 28916), (5614, 14458), (7229, 11228)]