211930173

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8923}}^1$

素因数の和:8978

約数の個数: 48

約数和(自身を含む): 389800320

約数和(自身を除く): 177870147

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1827, 2639, 3393, 7917, 8923, 23751, 26769, 62461, 80307, 115999, 187383, 258767, 347997, 562149, 776301, 811993, 1043991, 1811369, 2328903, 2435979, 3363971, 5434107, 7307937, 10091913, 16302321, 23547797, 30275739, 70643391, 211930173]

約数ペア:

[(1, 211930173), (3, 70643391), (7, 30275739), (9, 23547797), (13, 16302321), (21, 10091913), (29, 7307937), (39, 5434107), (63, 3363971), (87, 2435979), (91, 2328903), (117, 1811369), (203, 1043991), (261, 811993), (273, 776301), (377, 562149), (609, 347997), (819, 258767), (1131, 187383), (1827, 115999), (2639, 80307), (3393, 62461), (7917, 26769), (8923, 23751)]