20899053

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 18130707

約数列:

[1, 3, 7, 9, 21, 27, 29, 31, 41, 63, 81, 87, 93, 123, 189, 203, 217, 261, 279, 287, 369, 567, 609, 651, 783, 837, 861, 899, 1107, 1189, 1271, 1827, 1953, 2349, 2511, 2583, 2697, 3321, 3567, 3813, 5481, 5859, 6293, 7749, 8091, 8323, 8897, 10701, 11439, 16443, 17577, 18879, 23247, 24273, 24969, 26691, 32103, 34317, 36859, 56637, 72819, 74907, 80073, 96309, 102951, 110577, 169911, 224721, 240219, 258013, 331731, 509733, 674163, 720657, 774039, 995193, 2322117, 2985579, 6966351, 20899053]

約数ペア:

[(1, 20899053), (3, 6966351), (7, 2985579), (9, 2322117), (21, 995193), (27, 774039), (29, 720657), (31, 674163), (41, 509733), (63, 331731), (81, 258013), (87, 240219), (93, 224721), (123, 169911), (189, 110577), (203, 102951), (217, 96309), (261, 80073), (279, 74907), (287, 72819), (369, 56637), (567, 36859), (609, 34317), (651, 32103), (783, 26691), (837, 24969), (861, 24273), (899, 23247), (1107, 18879), (1189, 17577), (1271, 16443), (1827, 11439), (1953, 10701), (2349, 8897), (2511, 8323), (2583, 8091), (2697, 7749), (3321, 6293), (3567, 5859), (3813, 5481)]