21340977845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{126349}}^1$

素因数の和:126485

約数の個数: 32

約数和(自身を含む): 29038262400

約数和(自身を除く): 7697284555

約数列:

[1, 5, 11, 37, 55, 83, 185, 407, 415, 913, 2035, 3071, 4565, 15355, 33781, 126349, 168905, 631745, 1389839, 4674913, 6949195, 10486967, 23374565, 51424043, 52434835, 115356637, 257120215, 388017779, 576783185, 1940088895, 4268195569, 21340977845]

約数ペア:

[(1, 21340977845), (5, 4268195569), (11, 1940088895), (37, 576783185), (55, 388017779), (83, 257120215), (185, 115356637), (407, 52434835), (415, 51424043), (913, 23374565), (2035, 10486967), (3071, 6949195), (4565, 4674913), (15355, 1389839), (33781, 631745), (126349, 168905)]