2618721

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 4365504

約数和(自身を除く): 1746783

約数列:

[1, 3, 7, 9, 21, 63, 197, 211, 591, 633, 1379, 1477, 1773, 1899, 4137, 4431, 12411, 13293, 41567, 124701, 290969, 374103, 872907, 2618721]

約数ペア:

[(1, 2618721), (3, 872907), (7, 374103), (9, 290969), (21, 124701), (63, 41567), (197, 13293), (211, 12411), (591, 4431), (633, 4137), (1379, 1899), (1477, 1773)]