21104493

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 28740096

約数和(自身を除く): 7635603

約数列:

[1, 3, 83, 131, 249, 393, 647, 1941, 10873, 32619, 53701, 84757, 161103, 254271, 7034831, 21104493]

約数ペア:

[(1, 21104493), (3, 7034831), (83, 254271), (131, 161103), (249, 84757), (393, 53701), (647, 32619), (1941, 10873)]