15207810021

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{3077881}}^1$

素因数の和:3077954

約数の個数: 20

約数和(自身を含む): 23090270764

約数和(自身を除く): 7882460743

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 3077881, 9233643, 27700929, 83102787, 187750741, 249308361, 563252223, 1689756669, 5069270007, 15207810021]

約数ペア:

[(1, 15207810021), (3, 5069270007), (9, 1689756669), (27, 563252223), (61, 249308361), (81, 187750741), (183, 83102787), (549, 27700929), (1647, 9233643), (4941, 3077881)]