19137503

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 25559040

約数和(自身を除く): 6421537

約数列:

[1, 7, 11, 19, 77, 103, 127, 133, 209, 721, 889, 1133, 1397, 1463, 1957, 2413, 7931, 9779, 13081, 13699, 16891, 21527, 26543, 91567, 143891, 150689, 185801, 248539, 1007237, 1739773, 2733929, 19137503]

約数ペア:

[(1, 19137503), (7, 2733929), (11, 1739773), (19, 1007237), (77, 248539), (103, 185801), (127, 150689), (133, 143891), (209, 91567), (721, 26543), (889, 21527), (1133, 16891), (1397, 13699), (1463, 13081), (1957, 9779), (2413, 7931)]