20280897

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24763}}^1$

素因数の和:24789

約数の個数: 24

約数和(自身を含む): 36056384

約数和(自身を除く): 15775487

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24763, 74289, 173341, 222867, 321919, 520023, 965757, 1560069, 2253433, 2897271, 6760299, 20280897]

約数ペア:

[(1, 20280897), (3, 6760299), (7, 2897271), (9, 2253433), (13, 1560069), (21, 965757), (39, 520023), (63, 321919), (91, 222867), (117, 173341), (273, 74289), (819, 24763)]