21664113

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1979}}^1$

素因数の和:2112

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 8273487

約数列:

[1, 3, 41, 89, 123, 267, 1979, 3649, 5937, 10947, 81139, 176131, 243417, 528393, 7221371, 21664113]

約数ペア:

[(1, 21664113), (3, 7221371), (41, 528393), (89, 243417), (123, 176131), (267, 81139), (1979, 10947), (3649, 5937)]