18670743

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 36590400

約数和(自身を除く): 17919657

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 81, 91, 117, 119, 149, 153, 189, 221, 273, 351, 357, 447, 459, 567, 663, 819, 1043, 1053, 1071, 1341, 1377, 1547, 1937, 1989, 2457, 2533, 3129, 3213, 4023, 4641, 5811, 5967, 7371, 7599, 9387, 9639, 12069, 13559, 13923, 17433, 17731, 17901, 22797, 28161, 32929, 40677, 41769, 52299, 53193, 68391, 84483, 98787, 122031, 125307, 156897, 159579, 205173, 230503, 296361, 366093, 478737, 691509, 889083, 1098279, 1436211, 2074527, 2667249, 6223581, 18670743]

約数ペア:

[(1, 18670743), (3, 6223581), (7, 2667249), (9, 2074527), (13, 1436211), (17, 1098279), (21, 889083), (27, 691509), (39, 478737), (51, 366093), (63, 296361), (81, 230503), (91, 205173), (117, 159579), (119, 156897), (149, 125307), (153, 122031), (189, 98787), (221, 84483), (273, 68391), (351, 53193), (357, 52299), (447, 41769), (459, 40677), (567, 32929), (663, 28161), (819, 22797), (1043, 17901), (1053, 17731), (1071, 17433), (1341, 13923), (1377, 13559), (1547, 12069), (1937, 9639), (1989, 9387), (2457, 7599), (2533, 7371), (3129, 5967), (3213, 5811), (4023, 4641)]