212876145

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{17987}}^1$

素因数の和:18261

約数の個数: 24

約数和(自身を含む): 370408896

約数和(自身を除く): 157532751

約数列:

[1, 3, 5, 9, 15, 45, 263, 789, 1315, 2367, 3945, 11835, 17987, 53961, 89935, 161883, 269805, 809415, 4730581, 14191743, 23652905, 42575229, 70958715, 212876145]

約数ペア:

[(1, 212876145), (3, 70958715), (5, 42575229), (9, 23652905), (15, 14191743), (45, 4730581), (263, 809415), (789, 269805), (1315, 161883), (2367, 89935), (3945, 53961), (11835, 17987)]