21696844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1051}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 41032208

約数和(自身を除く): 19335364

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 1051, 1588, 2102, 4204, 5161, 10322, 13663, 20644, 27326, 54652, 417247, 834494, 1668988, 5424211, 10848422, 21696844]

約数ペア:

[(1, 21696844), (2, 10848422), (4, 5424211), (13, 1668988), (26, 834494), (52, 417247), (397, 54652), (794, 27326), (1051, 20644), (1588, 13663), (2102, 10322), (4204, 5161)]