20156987205

素因数分解:

$3^2\times 5^1\times {\mathrm{447933049}}^1$

素因数の和:447933060

約数の個数: 12

約数和(自身を含む): 34938777900

約数和(自身を除く): 14781790695

約数列:

[1, 3, 5, 9, 15, 45, 447933049, 1343799147, 2239665245, 4031397441, 6718995735, 20156987205]

約数ペア:

[(1, 20156987205), (3, 6718995735), (5, 4031397441), (9, 2239665245), (15, 1343799147), (45, 447933049)]