18937105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 25290216

約数和(自身を除く): 6353111

約数列:

[1, 5, 11, 55, 113, 121, 277, 565, 605, 1243, 1385, 3047, 6215, 13673, 15235, 31301, 33517, 68365, 156505, 167585, 344311, 1721555, 3787421, 18937105]

約数ペア:

[(1, 18937105), (5, 3787421), (11, 1721555), (55, 344311), (113, 167585), (121, 156505), (277, 68365), (565, 33517), (605, 31301), (1243, 15235), (1385, 13673), (3047, 6215)]