19409621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13267}}^1$

素因数の和:13304

約数の個数: 16

約数和(自身を含む): 25474560

約数和(自身を除く): 6064939

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 13267, 92869, 145937, 252073, 1021559, 1764511, 2772803, 19409621]

約数ペア:

[(1, 19409621), (7, 2772803), (11, 1764511), (19, 1021559), (77, 252073), (133, 145937), (209, 92869), (1463, 13267)]