20153842

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:534

約数の個数: 24

約数和(自身を含む): 32410224

約数和(自身を除く): 12256382

約数列:

[1, 2, 23, 43, 46, 86, 443, 529, 886, 989, 1058, 1978, 10189, 19049, 20378, 22747, 38098, 45494, 234347, 438127, 468694, 876254, 10076921, 20153842]

約数ペア:

[(1, 20153842), (2, 10076921), (23, 876254), (43, 468694), (46, 438127), (86, 234347), (443, 45494), (529, 38098), (886, 22747), (989, 20378), (1058, 19049), (1978, 10189)]