21795224

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 47413080

約数和(自身を除く): 25617856

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 289, 374, 578, 748, 857, 1156, 1496, 1714, 2312, 3179, 3428, 6358, 6856, 9427, 12716, 14569, 18854, 25432, 29138, 37708, 58276, 75416, 116552, 160259, 247673, 320518, 495346, 641036, 990692, 1282072, 1981384, 2724403, 5448806, 10897612, 21795224]

約数ペア:

[(1, 21795224), (2, 10897612), (4, 5448806), (8, 2724403), (11, 1981384), (17, 1282072), (22, 990692), (34, 641036), (44, 495346), (68, 320518), (88, 247673), (136, 160259), (187, 116552), (289, 75416), (374, 58276), (578, 37708), (748, 29138), (857, 25432), (1156, 18854), (1496, 14569), (1714, 12716), (2312, 9427), (3179, 6856), (3428, 6358)]