28784295

素因数分解:

$3^3\times 5^1\times {\mathrm{213217}}^1$

素因数の和:213231

約数の個数: 16

約数和(自身を含む): 51172320

約数和(自身を除く): 22388025

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 213217, 639651, 1066085, 1918953, 3198255, 5756859, 9594765, 28784295]

約数ペア:

[(1, 28784295), (3, 9594765), (5, 5756859), (9, 3198255), (15, 1918953), (27, 1066085), (45, 639651), (135, 213217)]