20517484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1723}}^1$

素因数の和:1969

約数の個数: 24

約数和(自身を含む): 38858960

約数和(自身を除く): 18341476

約数列:

[1, 2, 4, 13, 26, 52, 229, 458, 916, 1723, 2977, 3446, 5954, 6892, 11908, 22399, 44798, 89596, 394567, 789134, 1578268, 5129371, 10258742, 20517484]

約数ペア:

[(1, 20517484), (2, 10258742), (4, 5129371), (13, 1578268), (26, 789134), (52, 394567), (229, 89596), (458, 44798), (916, 22399), (1723, 11908), (2977, 6892), (3446, 5954)]