217876149

素因数分解:

$3^4\times {\mathrm{1327}}^1\times {\mathrm{2027}}^1$

素因数の和:3366

約数の個数: 20

約数和(自身を含む): 325875264

約数和(自身を除く): 107999115

約数列:

[1, 3, 9, 27, 81, 1327, 2027, 3981, 6081, 11943, 18243, 35829, 54729, 107487, 164187, 2689829, 8069487, 24208461, 72625383, 217876149]

約数ペア:

[(1, 217876149), (3, 72625383), (9, 24208461), (27, 8069487), (81, 2689829), (1327, 164187), (2027, 107487), (3981, 54729), (6081, 35829), (11943, 18243)]