20803422896

素因数分解:

$2^4\times {\mathrm{691}}^1\times {\mathrm{1881641}}^1$

素因数の和:1882340

約数の個数: 20

約数和(自身を含む): 40364984184

約数和(自身を除く): 19561561288

約数列:

[1, 2, 4, 8, 16, 691, 1382, 2764, 5528, 11056, 1881641, 3763282, 7526564, 15053128, 30106256, 1300213931, 2600427862, 5200855724, 10401711448, 20803422896]

約数ペア:

[(1, 20803422896), (2, 10401711448), (4, 5200855724), (8, 2600427862), (16, 1300213931), (691, 30106256), (1382, 15053128), (2764, 7526564), (5528, 3763282), (11056, 1881641)]