19380361

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1$

素因数の和:1069

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 8037239

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1019, 1463, 1729, 2717, 7133, 11209, 13247, 19019, 19361, 78463, 92729, 135527, 145717, 212971, 251693, 1020019, 1490797, 1761851, 2768623, 19380361]

約数ペア:

[(1, 19380361), (7, 2768623), (11, 1761851), (13, 1490797), (19, 1020019), (77, 251693), (91, 212971), (133, 145717), (143, 135527), (209, 92729), (247, 78463), (1001, 19361), (1019, 19019), (1463, 13247), (1729, 11209), (2717, 7133)]