1277289

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{1213}}^1$

素因数の和:1238

約数の個数: 20

約数和(自身を含む): 2056516

約数和(自身を除く): 779227

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 1213, 3639, 10917, 15769, 32751, 47307, 98253, 141921, 425763, 1277289]

約数ペア:

[(1, 1277289), (3, 425763), (9, 141921), (13, 98253), (27, 47307), (39, 32751), (81, 15769), (117, 10917), (351, 3639), (1053, 1213)]