21000388607

素因数分解:

${\mathrm{11}}^1\times {\mathrm{1223}}^1\times {\mathrm{1561019}}^1$

素因数の和:1562253

約数の個数: 8

約数和(自身を含む): 22928261760

約数和(自身を除く): 1927873153

約数列:

[1, 11, 1223, 13453, 1561019, 17171209, 1909126237, 21000388607]

約数ペア:

[(1, 21000388607), (11, 1909126237), (1223, 17171209), (13453, 1561019)]