21801616

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80153}}^1$

素因数の和:80178

約数の個数: 20

約数和(自身を含む): 44725932

約数和(自身を除く): 22924316

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80153, 160306, 320612, 641224, 1282448, 1362601, 2725202, 5450404, 10900808, 21801616]

約数ペア:

[(1, 21801616), (2, 10900808), (4, 5450404), (8, 2725202), (16, 1362601), (17, 1282448), (34, 641224), (68, 320612), (136, 160306), (272, 80153)]