20650707

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1$

素因数の和:91

約数の個数: 90

約数和(自身を含む): 40361244

約数和(自身を除く): 19710537

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 43, 49, 63, 77, 81, 99, 121, 129, 147, 189, 231, 297, 301, 363, 387, 441, 473, 539, 567, 693, 847, 891, 903, 1089, 1161, 1323, 1419, 1617, 2079, 2107, 2541, 2709, 3267, 3311, 3483, 3969, 4257, 4851, 5203, 5929, 6237, 6321, 7623, 8127, 9801, 9933, 12771, 14553, 15609, 17787, 18963, 22869, 23177, 24381, 29799, 36421, 38313, 43659, 46827, 53361, 56889, 68607, 69531, 89397, 109263, 140481, 160083, 170667, 208593, 254947, 268191, 327789, 421443, 480249, 625779, 764841, 983367, 1877337, 2294523, 2950101, 6883569, 20650707]

約数ペア:

[(1, 20650707), (3, 6883569), (7, 2950101), (9, 2294523), (11, 1877337), (21, 983367), (27, 764841), (33, 625779), (43, 480249), (49, 421443), (63, 327789), (77, 268191), (81, 254947), (99, 208593), (121, 170667), (129, 160083), (147, 140481), (189, 109263), (231, 89397), (297, 69531), (301, 68607), (363, 56889), (387, 53361), (441, 46827), (473, 43659), (539, 38313), (567, 36421), (693, 29799), (847, 24381), (891, 23177), (903, 22869), (1089, 18963), (1161, 17787), (1323, 15609), (1419, 14553), (1617, 12771), (2079, 9933), (2107, 9801), (2541, 8127), (2709, 7623), (3267, 6321), (3311, 6237), (3483, 5929), (3969, 5203), (4257, 4851)]