21486620008

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{41719}}^1$

素因数の和:42290

約数の個数: 64

約数和(自身を含む): 48842438400

約数和(自身を除く): 27355818392

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 541, 952, 1082, 2164, 3787, 4328, 7574, 9197, 15148, 18394, 30296, 36788, 41719, 64379, 73576, 83438, 128758, 166876, 257516, 292033, 333752, 515032, 584066, 709223, 1168132, 1418446, 2336264, 2836892, 4964561, 5673784, 9929122, 19858244, 22569979, 39716488, 45139958, 90279916, 157989853, 180559832, 315979706, 383689643, 631959412, 767379286, 1263918824, 1534758572, 2685827501, 3069517144, 5371655002, 10743310004, 21486620008]

約数ペア:

[(1, 21486620008), (2, 10743310004), (4, 5371655002), (7, 3069517144), (8, 2685827501), (14, 1534758572), (17, 1263918824), (28, 767379286), (34, 631959412), (56, 383689643), (68, 315979706), (119, 180559832), (136, 157989853), (238, 90279916), (476, 45139958), (541, 39716488), (952, 22569979), (1082, 19858244), (2164, 9929122), (3787, 5673784), (4328, 4964561), (7574, 2836892), (9197, 2336264), (15148, 1418446), (18394, 1168132), (30296, 709223), (36788, 584066), (41719, 515032), (64379, 333752), (73576, 292033), (83438, 257516), (128758, 166876)]