21320500

素因数分解:

$2^2\times 5^3\times {\mathrm{42641}}^1$

素因数の和:42660

約数の個数: 24

約数和(自身を含む): 46565064

約数和(自身を除く): 25244564

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42641, 85282, 170564, 213205, 426410, 852820, 1066025, 2132050, 4264100, 5330125, 10660250, 21320500]

約数ペア:

[(1, 21320500), (2, 10660250), (4, 5330125), (5, 4264100), (10, 2132050), (20, 1066025), (25, 852820), (50, 426410), (100, 213205), (125, 170564), (250, 85282), (500, 42641)]