21004083

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 11827917

約数列:

[1, 3, 9, 23, 27, 69, 149, 207, 227, 447, 621, 681, 1341, 2043, 3427, 4023, 5221, 6129, 10281, 15663, 30843, 33823, 46989, 92529, 101469, 140967, 304407, 777929, 913221, 2333787, 7001361, 21004083]

約数ペア:

[(1, 21004083), (3, 7001361), (9, 2333787), (23, 913221), (27, 777929), (69, 304407), (149, 140967), (207, 101469), (227, 92529), (447, 46989), (621, 33823), (681, 30843), (1341, 15663), (2043, 10281), (3427, 6129), (4023, 5221)]