21000000559

素因数分解:

${\mathrm{199}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1\times {\mathrm{773}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 21265804800

約数和(自身を除く): 265804241

約数列:

[1, 199, 211, 647, 773, 41989, 128753, 136517, 153827, 163103, 500131, 27166883, 32457497, 99526069, 105527641, 21000000559]

約数ペア:

[(1, 21000000559), (199, 105527641), (211, 99526069), (647, 32457497), (773, 27166883), (41989, 500131), (128753, 163103), (136517, 153827)]