18801657

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 14220423

約数列:

[1, 3, 7, 9, 21, 29, 41, 63, 87, 123, 203, 251, 261, 287, 369, 609, 753, 861, 1189, 1757, 1827, 2259, 2583, 3567, 5271, 7279, 8323, 10291, 10701, 15813, 21837, 24969, 30873, 50953, 65511, 72037, 74907, 92619, 152859, 216111, 298439, 458577, 648333, 895317, 2089073, 2685951, 6267219, 18801657]

約数ペア:

[(1, 18801657), (3, 6267219), (7, 2685951), (9, 2089073), (21, 895317), (29, 648333), (41, 458577), (63, 298439), (87, 216111), (123, 152859), (203, 92619), (251, 74907), (261, 72037), (287, 65511), (369, 50953), (609, 30873), (753, 24969), (861, 21837), (1189, 15813), (1757, 10701), (1827, 10291), (2259, 8323), (2583, 7279), (3567, 5271)]