21000657605

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{1559}}^1\times {\mathrm{30271}}^1$

素因数の和:31924

約数の個数: 16

約数和(自身を含む): 25501132800

約数和(自身を除く): 4500475195

約数列:

[1, 5, 89, 445, 1559, 7795, 30271, 138751, 151355, 693755, 2694119, 13470595, 47192489, 235962445, 4200131521, 21000657605]

約数ペア:

[(1, 21000657605), (5, 4200131521), (89, 235962445), (445, 47192489), (1559, 13470595), (7795, 2694119), (30271, 693755), (138751, 151355)]