18972963

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 29054480

約数和(自身を除く): 10081517

約数列:

[1, 3, 9, 19, 57, 171, 181, 543, 613, 1629, 1839, 3439, 5517, 10317, 11647, 30951, 34941, 104823, 110953, 332859, 998577, 2108107, 6324321, 18972963]

約数ペア:

[(1, 18972963), (3, 6324321), (9, 2108107), (19, 998577), (57, 332859), (171, 110953), (181, 104823), (543, 34941), (613, 30951), (1629, 11647), (1839, 10317), (3439, 5517)]