21447640

素因数分解:

$2^3\times 5^1\times {\mathrm{536191}}^1$

素因数の和:536202

約数の個数: 16

約数和(自身を含む): 48257280

約数和(自身を除く): 26809640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 536191, 1072382, 2144764, 2680955, 4289528, 5361910, 10723820, 21447640]

約数ペア:

[(1, 21447640), (2, 10723820), (4, 5361910), (5, 4289528), (8, 2680955), (10, 2144764), (20, 1072382), (40, 536191)]