20728714321

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{1907}}^1\times {\mathrm{12227}}^1$

素因数の和:14268

約数の個数: 16

約数和(自身を含む): 23890968576

約数和(自身を除く): 3162254255

約数列:

[1, 7, 127, 889, 1907, 12227, 13349, 85589, 242189, 1552829, 1695323, 10869803, 23316889, 163218223, 2961244903, 20728714321]

約数ペア:

[(1, 20728714321), (7, 2961244903), (127, 163218223), (889, 23316889), (1907, 10869803), (12227, 1695323), (13349, 1552829), (85589, 242189)]