21103927

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2062

約数の個数: 16

約数和(自身を含む): 24492160

約数和(自身を除く): 3388233

約数列:

[1, 13, 19, 43, 247, 559, 817, 1987, 10621, 25831, 37753, 85441, 490789, 1110733, 1623379, 21103927]

約数ペア:

[(1, 21103927), (13, 1623379), (19, 1110733), (43, 490789), (247, 85441), (559, 37753), (817, 25831), (1987, 10621)]