19390185

素因数分解:

$3^5\times 5^1\times {\mathrm{15959}}^1$

素因数の和:15979

約数の個数: 24

約数和(自身を含む): 34856640

約数和(自身を除く): 15466455

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15959, 47877, 79795, 143631, 239385, 430893, 718155, 1292679, 2154465, 3878037, 6463395, 19390185]

約数ペア:

[(1, 19390185), (3, 6463395), (5, 3878037), (9, 2154465), (15, 1292679), (27, 718155), (45, 430893), (81, 239385), (135, 143631), (243, 79795), (405, 47877), (1215, 15959)]