51972921

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:684

約数の個数: 80

約数和(自身を含む): 104404608

約数和(自身を除く): 52431687

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 81, 91, 99, 117, 143, 189, 231, 273, 297, 351, 429, 567, 641, 693, 819, 891, 1001, 1053, 1287, 1923, 2079, 2457, 3003, 3861, 4487, 5769, 6237, 7051, 7371, 8333, 9009, 11583, 13461, 17307, 21153, 24999, 27027, 40383, 49357, 51921, 58331, 63459, 74997, 81081, 91663, 121149, 148071, 174993, 190377, 224991, 274989, 363447, 444213, 524979, 571131, 641641, 674973, 824967, 1332639, 1574937, 1924923, 2474901, 3997917, 4724811, 5774769, 7424703, 17324307, 51972921]

約数ペア:

[(1, 51972921), (3, 17324307), (7, 7424703), (9, 5774769), (11, 4724811), (13, 3997917), (21, 2474901), (27, 1924923), (33, 1574937), (39, 1332639), (63, 824967), (77, 674973), (81, 641641), (91, 571131), (99, 524979), (117, 444213), (143, 363447), (189, 274989), (231, 224991), (273, 190377), (297, 174993), (351, 148071), (429, 121149), (567, 91663), (641, 81081), (693, 74997), (819, 63459), (891, 58331), (1001, 51921), (1053, 49357), (1287, 40383), (1923, 27027), (2079, 24999), (2457, 21153), (3003, 17307), (3861, 13461), (4487, 11583), (5769, 9009), (6237, 8333), (7051, 7371)]