19866418

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{69463}}^1$

素因数の和:69489

約数の個数: 16

約数和(自身を含む): 35009856

約数和(自身を除く): 15143438

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 69463, 138926, 764093, 903019, 1528186, 1806038, 9933209, 19866418]

約数ペア:

[(1, 19866418), (2, 9933209), (11, 1806038), (13, 1528186), (22, 903019), (26, 764093), (143, 138926), (286, 69463)]