21000304864

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1301}}^1\times {\mathrm{6551}}^1$

素因数の和:7880

約数の個数: 96

約数和(自身を含む): 51593697792

約数和(自身を除く): 30593392928

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 1301, 2464, 2602, 5204, 6551, 9107, 10408, 13102, 14311, 18214, 20816, 26204, 28622, 36428, 41632, 45857, 52408, 57244, 72061, 72856, 91714, 100177, 104816, 114488, 144122, 145712, 183428, 200354, 209632, 228976, 288244, 291424, 366856, 400708, 457952, 504427, 576488, 733712, 801416, 1008854, 1152976, 1467424, 1602832, 2017708, 2305952, 3205664, 4035416, 8070832, 8522851, 16141664, 17045702, 34091404, 59659957, 68182808, 93751361, 119319914, 136365616, 187502722, 238639828, 272731232, 375005444, 477279656, 656259527, 750010888, 954559312, 1312519054, 1500021776, 1909118624, 2625038108, 3000043552, 5250076216, 10500152432, 21000304864]

約数ペア:

[(1, 21000304864), (2, 10500152432), (4, 5250076216), (7, 3000043552), (8, 2625038108), (11, 1909118624), (14, 1500021776), (16, 1312519054), (22, 954559312), (28, 750010888), (32, 656259527), (44, 477279656), (56, 375005444), (77, 272731232), (88, 238639828), (112, 187502722), (154, 136365616), (176, 119319914), (224, 93751361), (308, 68182808), (352, 59659957), (616, 34091404), (1232, 17045702), (1301, 16141664), (2464, 8522851), (2602, 8070832), (5204, 4035416), (6551, 3205664), (9107, 2305952), (10408, 2017708), (13102, 1602832), (14311, 1467424), (18214, 1152976), (20816, 1008854), (26204, 801416), (28622, 733712), (36428, 576488), (41632, 504427), (45857, 457952), (52408, 400708), (57244, 366856), (72061, 291424), (72856, 288244), (91714, 228976), (100177, 209632), (104816, 200354), (114488, 183428), (144122, 145712)]