290465217

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1803

約数の個数: 64

約数和(自身を含む): 528998400

約数和(自身を除く): 238533183

約数列:

[1, 3, 7, 9, 19, 21, 27, 47, 57, 63, 133, 141, 171, 189, 329, 399, 423, 513, 893, 987, 1197, 1269, 1721, 2679, 2961, 3591, 5163, 6251, 8037, 8883, 12047, 15489, 18753, 24111, 32699, 36141, 46467, 56259, 80887, 98097, 108423, 168777, 228893, 242661, 294291, 325269, 566209, 686679, 727983, 882873, 1536853, 1698627, 2060037, 2183949, 4610559, 5095881, 6180111, 10757971, 13831677, 15287643, 32273913, 41495031, 96821739, 290465217]

約数ペア:

[(1, 290465217), (3, 96821739), (7, 41495031), (9, 32273913), (19, 15287643), (21, 13831677), (27, 10757971), (47, 6180111), (57, 5095881), (63, 4610559), (133, 2183949), (141, 2060037), (171, 1698627), (189, 1536853), (329, 882873), (399, 727983), (423, 686679), (513, 566209), (893, 325269), (987, 294291), (1197, 242661), (1269, 228893), (1721, 168777), (2679, 108423), (2961, 98097), (3591, 80887), (5163, 56259), (6251, 46467), (8037, 36141), (8883, 32699), (12047, 24111), (15489, 18753)]