20562843

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 12891237

約数列:

[1, 3, 7, 17, 21, 51, 119, 239, 241, 357, 717, 723, 1673, 1687, 4063, 4097, 5019, 5061, 12189, 12291, 28441, 28679, 57599, 85323, 86037, 172797, 403193, 979183, 1209579, 2937549, 6854281, 20562843]

約数ペア:

[(1, 20562843), (3, 6854281), (7, 2937549), (17, 1209579), (21, 979183), (51, 403193), (119, 172797), (239, 86037), (241, 85323), (357, 57599), (717, 28679), (723, 28441), (1673, 12291), (1687, 12189), (4063, 5061), (4097, 5019)]