21284439

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{7247}}^1$

素因数の和:7350

約数の個数: 16

約数和(自身を含む): 31311360

約数和(自身を除く): 10026921

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 7247, 21741, 79717, 239151, 644983, 1934949, 7094813, 21284439]

約数ペア:

[(1, 21284439), (3, 7094813), (11, 1934949), (33, 644983), (89, 239151), (267, 79717), (979, 21741), (2937, 7247)]