21320264

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16553}}^1$

素因数の和:16589

約数の個数: 32

約数和(自身を含む): 47675520

約数和(自身を除く): 26355256

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16553, 33106, 66212, 115871, 132424, 231742, 380719, 463484, 761438, 926968, 1522876, 2665033, 3045752, 5330066, 10660132, 21320264]

約数ペア:

[(1, 21320264), (2, 10660132), (4, 5330066), (7, 3045752), (8, 2665033), (14, 1522876), (23, 926968), (28, 761438), (46, 463484), (56, 380719), (92, 231742), (161, 132424), (184, 115871), (322, 66212), (644, 33106), (1288, 16553)]