21483988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1637}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 40039272

約数和(自身を除く): 18555284

約数列:

[1, 2, 4, 17, 34, 68, 193, 386, 772, 1637, 3274, 3281, 6548, 6562, 13124, 27829, 55658, 111316, 315941, 631882, 1263764, 5370997, 10741994, 21483988]

約数ペア:

[(1, 21483988), (2, 10741994), (4, 5370997), (17, 1263764), (34, 631882), (68, 315941), (193, 111316), (386, 55658), (772, 27829), (1637, 13124), (3274, 6562), (3281, 6548)]