690654321

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{2333}}^1$

素因数の和:2510

約数の個数: 48

約数和(自身を含む): 1180667904

約数和(自身を除く): 490013583

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 127, 259, 333, 381, 777, 889, 1143, 2331, 2333, 2667, 4699, 6999, 8001, 14097, 16331, 20997, 32893, 42291, 48993, 86321, 98679, 146979, 258963, 296037, 296291, 604247, 776889, 888873, 1812741, 2074037, 2666619, 5438223, 6222111, 10962767, 18666333, 32888301, 76739369, 98664903, 230218107, 690654321]

約数ペア:

[(1, 690654321), (3, 230218107), (7, 98664903), (9, 76739369), (21, 32888301), (37, 18666333), (63, 10962767), (111, 6222111), (127, 5438223), (259, 2666619), (333, 2074037), (381, 1812741), (777, 888873), (889, 776889), (1143, 604247), (2331, 296291), (2333, 296037), (2667, 258963), (4699, 146979), (6999, 98679), (8001, 86321), (14097, 48993), (16331, 42291), (20997, 32893)]