17966979

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 29090880

約数和(自身を除く): 11123901

約数列:

[1, 3, 9, 23, 29, 41, 69, 73, 87, 123, 207, 219, 261, 369, 657, 667, 943, 1189, 1679, 2001, 2117, 2829, 2993, 3567, 5037, 6003, 6351, 8487, 8979, 10701, 15111, 19053, 26937, 27347, 48691, 68839, 82041, 86797, 146073, 206517, 246123, 260391, 438219, 619551, 781173, 1996331, 5988993, 17966979]

約数ペア:

[(1, 17966979), (3, 5988993), (9, 1996331), (23, 781173), (29, 619551), (41, 438219), (69, 260391), (73, 246123), (87, 206517), (123, 146073), (207, 86797), (219, 82041), (261, 68839), (369, 48691), (657, 27347), (667, 26937), (943, 19053), (1189, 15111), (1679, 10701), (2001, 8979), (2117, 8487), (2829, 6351), (2993, 6003), (3567, 5037)]