19972724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2411}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 37144800

約数和(自身を除く): 17172076

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2411, 4142, 4822, 8284, 9644, 45809, 91618, 183236, 262799, 525598, 1051196, 4993181, 9986362, 19972724]

約数ペア:

[(1, 19972724), (2, 9986362), (4, 4993181), (19, 1051196), (38, 525598), (76, 262799), (109, 183236), (218, 91618), (436, 45809), (2071, 9644), (2411, 8284), (4142, 4822)]