138889215

素因数分解:

$3^3\times 5^1\times {\mathrm{1028809}}^1$

素因数の和:1028823

約数の個数: 16

約数和(自身を含む): 246914400

約数和(自身を除く): 108025185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1028809, 3086427, 5144045, 9259281, 15432135, 27777843, 46296405, 138889215]

約数ペア:

[(1, 138889215), (3, 46296405), (5, 27777843), (9, 15432135), (15, 9259281), (27, 5144045), (45, 3086427), (135, 1028809)]