21921004

素因数分解:

$2^2\times 7^1\times {\mathrm{599}}^1\times {\mathrm{1307}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 43948800

約数和(自身を除く): 22027796

約数列:

[1, 2, 4, 7, 14, 28, 599, 1198, 1307, 2396, 2614, 4193, 5228, 8386, 9149, 16772, 18298, 36596, 782893, 1565786, 3131572, 5480251, 10960502, 21921004]

約数ペア:

[(1, 21921004), (2, 10960502), (4, 5480251), (7, 3131572), (14, 1565786), (28, 782893), (599, 36596), (1198, 18298), (1307, 16772), (2396, 9149), (2614, 8386), (4193, 5228)]