206886281

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{19457}}^1$

素因数の和:19509

約数の個数: 16

約数和(自身を含む): 249062400

約数和(自身を除く): 42176119

約数列:

[1, 7, 31, 49, 217, 343, 1519, 10633, 19457, 136199, 603167, 953393, 4222169, 6673751, 29555183, 206886281]

約数ペア:

[(1, 206886281), (7, 29555183), (31, 6673751), (49, 4222169), (217, 953393), (343, 603167), (1519, 136199), (10633, 19457)]