20784916

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1439}}^1$

素因数の和:1623

約数の個数: 24

約数和(自身を含む): 38223360

約数和(自身を除く): 17438444

約数列:

[1, 2, 4, 23, 46, 92, 157, 314, 628, 1439, 2878, 3611, 5756, 7222, 14444, 33097, 66194, 132388, 225923, 451846, 903692, 5196229, 10392458, 20784916]

約数ペア:

[(1, 20784916), (2, 10392458), (4, 5196229), (23, 903692), (46, 451846), (92, 225923), (157, 132388), (314, 66194), (628, 33097), (1439, 14444), (2878, 7222), (3611, 5756)]