19992218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7207}}^1$

素因数の和:7301

約数の個数: 16

約数和(自身を含む): 32003520

約数和(自身を除く): 12011302

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7207, 14414, 136933, 273866, 526111, 1052222, 9996109, 19992218]

約数ペア:

[(1, 19992218), (2, 9996109), (19, 1052222), (38, 526111), (73, 273866), (146, 136933), (1387, 14414), (2774, 7207)]