38018981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2049

約数の個数: 32

約数和(自身を含む): 53760000

約数和(自身を除く): 15741019

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1463, 1729, 1999, 2717, 13993, 19019, 21989, 25987, 37981, 153923, 181909, 265867, 285857, 417791, 493753, 2000999, 2924537, 3456271, 5431283, 38018981]

約数ペア:

[(1, 38018981), (7, 5431283), (11, 3456271), (13, 2924537), (19, 2000999), (77, 493753), (91, 417791), (133, 285857), (143, 265867), (209, 181909), (247, 153923), (1001, 37981), (1463, 25987), (1729, 21989), (1999, 19019), (2717, 13993)]