21227787

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5711}}^1$

素因数の和:5783

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 14415093

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5711, 17133, 39977, 51399, 119931, 336949, 359793, 1010847, 2358643, 3032541, 7075929, 21227787]

約数ペア:

[(1, 21227787), (3, 7075929), (7, 3032541), (9, 2358643), (21, 1010847), (59, 359793), (63, 336949), (177, 119931), (413, 51399), (531, 39977), (1239, 17133), (3717, 5711)]