19954424

素因数分解:

$2^3\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1021}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 42924000

約数和(自身を除く): 22969576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 349, 698, 1021, 1396, 2042, 2443, 2792, 4084, 4886, 7147, 8168, 9772, 14294, 19544, 28588, 57176, 356329, 712658, 1425316, 2494303, 2850632, 4988606, 9977212, 19954424]

約数ペア:

[(1, 19954424), (2, 9977212), (4, 4988606), (7, 2850632), (8, 2494303), (14, 1425316), (28, 712658), (56, 356329), (349, 57176), (698, 28588), (1021, 19544), (1396, 14294), (2042, 9772), (2443, 8168), (2792, 7147), (4084, 4886)]