21263397488

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{9871}}^1$

素因数の和:10054

約数の個数: 80

約数和(自身を含む): 43951091712

約数和(自身を除く): 22687694224

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 101, 124, 172, 202, 248, 344, 404, 496, 688, 808, 1333, 1616, 2666, 3131, 4343, 5332, 6262, 8686, 9871, 10664, 12524, 17372, 19742, 21328, 25048, 34744, 39484, 50096, 69488, 78968, 134633, 157936, 269266, 306001, 424453, 538532, 612002, 848906, 996971, 1077064, 1224004, 1697812, 1993942, 2154128, 2448008, 3395624, 3987884, 4896016, 6791248, 7975768, 13158043, 15951536, 26316086, 30906101, 42869753, 52632172, 61812202, 85739506, 105264344, 123624404, 171479012, 210528688, 247248808, 342958024, 494497616, 685916048, 1328962343, 2657924686, 5315849372, 10631698744, 21263397488]

約数ペア:

[(1, 21263397488), (2, 10631698744), (4, 5315849372), (8, 2657924686), (16, 1328962343), (31, 685916048), (43, 494497616), (62, 342958024), (86, 247248808), (101, 210528688), (124, 171479012), (172, 123624404), (202, 105264344), (248, 85739506), (344, 61812202), (404, 52632172), (496, 42869753), (688, 30906101), (808, 26316086), (1333, 15951536), (1616, 13158043), (2666, 7975768), (3131, 6791248), (4343, 4896016), (5332, 3987884), (6262, 3395624), (8686, 2448008), (9871, 2154128), (10664, 1993942), (12524, 1697812), (17372, 1224004), (19742, 1077064), (21328, 996971), (25048, 848906), (34744, 612002), (39484, 538532), (50096, 424453), (69488, 306001), (78968, 269266), (134633, 157936)]