21137325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25621}}^1$

素因数の和:25645

約数の個数: 24

約数和(自身を含む): 38125536

約数和(自身を除く): 16988211

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25621, 76863, 128105, 281831, 384315, 640525, 845493, 1409155, 1921575, 4227465, 7045775, 21137325]

約数ペア:

[(1, 21137325), (3, 7045775), (5, 4227465), (11, 1921575), (15, 1409155), (25, 845493), (33, 640525), (55, 384315), (75, 281831), (165, 128105), (275, 76863), (825, 25621)]