20488923

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18218277

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 91, 93, 117, 189, 217, 269, 273, 279, 351, 403, 651, 807, 819, 837, 1209, 1883, 1953, 2421, 2457, 2821, 3497, 3627, 5649, 5859, 7263, 8339, 8463, 10491, 10881, 16947, 24479, 25017, 25389, 31473, 50841, 58373, 73437, 75051, 76167, 94419, 108407, 175119, 220311, 225153, 325221, 525357, 660933, 758849, 975663, 1576071, 2276547, 2926989, 6829641, 20488923]

約数ペア:

[(1, 20488923), (3, 6829641), (7, 2926989), (9, 2276547), (13, 1576071), (21, 975663), (27, 758849), (31, 660933), (39, 525357), (63, 325221), (91, 225153), (93, 220311), (117, 175119), (189, 108407), (217, 94419), (269, 76167), (273, 75051), (279, 73437), (351, 58373), (403, 50841), (651, 31473), (807, 25389), (819, 25017), (837, 24479), (1209, 16947), (1883, 10881), (1953, 10491), (2421, 8463), (2457, 8339), (2821, 7263), (3497, 5859), (3627, 5649)]