21455852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{857}}^1$

素因数の和:1441

約数の個数: 24

約数和(自身を含む): 41081040

約数和(自身を除く): 19625188

約数列:

[1, 2, 4, 11, 22, 44, 569, 857, 1138, 1714, 2276, 3428, 6259, 9427, 12518, 18854, 25036, 37708, 487633, 975266, 1950532, 5363963, 10727926, 21455852]

約数ペア:

[(1, 21455852), (2, 10727926), (4, 5363963), (11, 1950532), (22, 975266), (44, 487633), (569, 37708), (857, 25036), (1138, 18854), (1714, 12518), (2276, 9427), (3428, 6259)]