18947199

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{677}}^1$

素因数の和:1190

約数の個数: 16

約数和(自身を含む): 26686080

約数和(自身を除く): 7738881

約数列:

[1, 3, 19, 57, 491, 677, 1473, 2031, 9329, 12863, 27987, 38589, 332407, 997221, 6315733, 18947199]

約数ペア:

[(1, 18947199), (3, 6315733), (19, 997221), (57, 332407), (491, 38589), (677, 27987), (1473, 12863), (2031, 9329)]