31388291289

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{839}}^1$

素因数の和:986

約数の個数: 112

約数和(自身を含む): 51635068800

約数和(自身を除く): 20246777511

約数列:

[1, 3, 9, 19, 27, 37, 57, 73, 81, 111, 171, 219, 243, 333, 513, 657, 703, 729, 839, 999, 1387, 1539, 1971, 2109, 2517, 2701, 2997, 4161, 4617, 5913, 6327, 7551, 8103, 8991, 12483, 13851, 15941, 17739, 18981, 22653, 24309, 26973, 31043, 37449, 47823, 51319, 53217, 56943, 61247, 67959, 72927, 93129, 112347, 143469, 153957, 170829, 183741, 203877, 218781, 279387, 337041, 430407, 461871, 512487, 551223, 589817, 611631, 656343, 838161, 1011123, 1163693, 1291221, 1385613, 1653669, 1769451, 1969029, 2266139, 2514483, 3491079, 3873663, 4156839, 4961007, 5308353, 6798417, 7543449, 10473237, 11620989, 12470517, 14883021, 15925059, 20395251, 22630347, 31419711, 37411551, 43056641, 44649063, 47775177, 61185753, 94259133, 129169923, 143325531, 183557259, 282777399, 387509769, 429976593, 550671777, 848332197, 1162529307, 1652015331, 3487587921, 10462763763, 31388291289]

約数ペア:

[(1, 31388291289), (3, 10462763763), (9, 3487587921), (19, 1652015331), (27, 1162529307), (37, 848332197), (57, 550671777), (73, 429976593), (81, 387509769), (111, 282777399), (171, 183557259), (219, 143325531), (243, 129169923), (333, 94259133), (513, 61185753), (657, 47775177), (703, 44649063), (729, 43056641), (839, 37411551), (999, 31419711), (1387, 22630347), (1539, 20395251), (1971, 15925059), (2109, 14883021), (2517, 12470517), (2701, 11620989), (2997, 10473237), (4161, 7543449), (4617, 6798417), (5913, 5308353), (6327, 4961007), (7551, 4156839), (8103, 3873663), (8991, 3491079), (12483, 2514483), (13851, 2266139), (15941, 1969029), (17739, 1769451), (18981, 1653669), (22653, 1385613), (24309, 1291221), (26973, 1163693), (31043, 1011123), (37449, 838161), (47823, 656343), (51319, 611631), (53217, 589817), (56943, 551223), (61247, 512487), (67959, 461871), (72927, 430407), (93129, 337041), (112347, 279387), (143469, 218781), (153957, 203877), (170829, 183741)]