20802471921

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{5441}}^1$

素因数の和:6084

約数の個数: 80

約数和(自身を含む): 38813563008

約数和(自身を除く): 18011091087

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 613, 693, 891, 1839, 2079, 4291, 5441, 5517, 6237, 6743, 12873, 16323, 16551, 20229, 38087, 38619, 47201, 48969, 49653, 59851, 60687, 114261, 115857, 141603, 146907, 179553, 182061, 342783, 347571, 418957, 424809, 440721, 538659, 546183, 1028349, 1256871, 1274427, 1615977, 3085047, 3335333, 3770613, 3823281, 4847931, 10005999, 11311839, 23347331, 30017997, 33935517, 36688663, 70041993, 90053991, 110065989, 210125979, 256820641, 270161973, 330197967, 630377937, 770461923, 990593901, 1891133811, 2311385769, 2971781703, 6934157307, 20802471921]

約数ペア:

[(1, 20802471921), (3, 6934157307), (7, 2971781703), (9, 2311385769), (11, 1891133811), (21, 990593901), (27, 770461923), (33, 630377937), (63, 330197967), (77, 270161973), (81, 256820641), (99, 210125979), (189, 110065989), (231, 90053991), (297, 70041993), (567, 36688663), (613, 33935517), (693, 30017997), (891, 23347331), (1839, 11311839), (2079, 10005999), (4291, 4847931), (5441, 3823281), (5517, 3770613), (6237, 3335333), (6743, 3085047), (12873, 1615977), (16323, 1274427), (16551, 1256871), (20229, 1028349), (38087, 546183), (38619, 538659), (47201, 440721), (48969, 424809), (49653, 418957), (59851, 347571), (60687, 342783), (114261, 182061), (115857, 179553), (141603, 146907)]