21090909853

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{4494121}}^1$

素因数の和:4494172

約数の個数: 12

約数和(自身を含む): 23971646748

約数和(自身を除く): 2880736895

約数列:

[1, 13, 19, 247, 361, 4693, 4494121, 58423573, 85388299, 1110047887, 1622377681, 21090909853]

約数ペア:

[(1, 21090909853), (13, 1622377681), (19, 1110047887), (247, 85388299), (361, 58423573), (4693, 4494121)]