21320522377

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{4051}}^1\times {\mathrm{68351}}^1$

素因数の和:72420

約数の個数: 16

約数和(自身を含む): 26588381184

約数和(自身を除く): 5267858807

約数列:

[1, 7, 11, 77, 4051, 28357, 44561, 68351, 311927, 478457, 751861, 5263027, 276889901, 1938229307, 3045788911, 21320522377]

約数ペア:

[(1, 21320522377), (7, 3045788911), (11, 1938229307), (77, 276889901), (4051, 5263027), (28357, 751861), (44561, 478457), (68351, 311927)]