21000921887

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1\times {\mathrm{71971}}^1$

素因数の和:72670

約数の個数: 16

約数和(自身を含む): 23505479424

約数和(自身を除く): 2504557537

約数列:

[1, 11, 41, 451, 647, 7117, 26527, 71971, 291797, 791681, 2950811, 32458921, 46565237, 512217607, 1909174717, 21000921887]

約数ペア:

[(1, 21000921887), (11, 1909174717), (41, 512217607), (451, 46565237), (647, 32458921), (7117, 2950811), (26527, 791681), (71971, 291797)]