21000478057

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{175991}}^1$

素因数の和:176208

約数の個数: 16

約数和(自身を含む): 23121124992

約数和(自身を除く): 2120646935

約数列:

[1, 13, 67, 137, 871, 1781, 9179, 119327, 175991, 2287883, 11791397, 24110767, 153288161, 313439971, 1615421389, 21000478057]

約数ペア:

[(1, 21000478057), (13, 1615421389), (67, 313439971), (137, 153288161), (871, 24110767), (1781, 11791397), (9179, 2287883), (119327, 175991)]