20453895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5903}}^1$

素因数の和:5932

約数の個数: 48

約数和(自身を含む): 44209152

約数和(自身を除く): 23755257

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5903, 17709, 29515, 41321, 53127, 64933, 88545, 123963, 194799, 206605, 265635, 324665, 371889, 454531, 584397, 619815, 973995, 1363593, 1859445, 2272655, 2921985, 4090779, 6817965, 20453895]

約数ペア:

[(1, 20453895), (3, 6817965), (5, 4090779), (7, 2921985), (9, 2272655), (11, 1859445), (15, 1363593), (21, 973995), (33, 619815), (35, 584397), (45, 454531), (55, 371889), (63, 324665), (77, 265635), (99, 206605), (105, 194799), (165, 123963), (231, 88545), (315, 64933), (385, 53127), (495, 41321), (693, 29515), (1155, 17709), (3465, 5903)]