77131521

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{5261}}^1$

素因数の和:5454

約数の個数: 20

約数和(自身を含む): 115879764

約数和(自身を除く): 38748243

約数列:

[1, 3, 9, 27, 81, 181, 543, 1629, 4887, 5261, 14661, 15783, 47349, 142047, 426141, 952241, 2856723, 8570169, 25710507, 77131521]

約数ペア:

[(1, 77131521), (3, 25710507), (9, 8570169), (27, 2856723), (81, 952241), (181, 426141), (543, 142047), (1629, 47349), (4887, 15783), (5261, 14661)]