20158556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{14779}}^1$

素因数の和:14825

約数の個数: 24

約数和(自身を含む): 39728640

約数和(自身を除く): 19570084

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 14779, 29558, 59116, 162569, 325138, 458149, 650276, 916298, 1832596, 5039639, 10079278, 20158556]

約数ペア:

[(1, 20158556), (2, 10079278), (4, 5039639), (11, 1832596), (22, 916298), (31, 650276), (44, 458149), (62, 325138), (124, 162569), (341, 59116), (682, 29558), (1364, 14779)]