21408944

素因数分解:

$2^4\times {\mathrm{719}}^1\times {\mathrm{1861}}^1$

素因数の和:2588

約数の個数: 20

約数和(自身を含む): 41559840

約数和(自身を除く): 20150896

約数列:

[1, 2, 4, 8, 16, 719, 1438, 1861, 2876, 3722, 5752, 7444, 11504, 14888, 29776, 1338059, 2676118, 5352236, 10704472, 21408944]

約数ペア:

[(1, 21408944), (2, 10704472), (4, 5352236), (8, 2676118), (16, 1338059), (719, 29776), (1438, 14888), (1861, 11504), (2876, 7444), (3722, 5752)]