21752450

素因数分解:

$2^1\times 5^2\times {\mathrm{439}}^1\times {\mathrm{991}}^1$

素因数の和:1442

約数の個数: 24

約数和(自身を含む): 40592640

約数和(自身を除く): 18840190

約数列:

[1, 2, 5, 10, 25, 50, 439, 878, 991, 1982, 2195, 4390, 4955, 9910, 10975, 21950, 24775, 49550, 435049, 870098, 2175245, 4350490, 10876225, 21752450]

約数ペア:

[(1, 21752450), (2, 10876225), (5, 4350490), (10, 2175245), (25, 870098), (50, 435049), (439, 49550), (878, 24775), (991, 21950), (1982, 10975), (2195, 9910), (4390, 4955)]