209479893

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{212239}}^1$

素因数の和:212296

約数の個数: 16

約数和(自身を含む): 326000640

約数和(自身を除く): 116520747

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 212239, 636717, 1485673, 4457019, 9975233, 29925699, 69826631, 209479893]

約数ペア:

[(1, 209479893), (3, 69826631), (7, 29925699), (21, 9975233), (47, 4457019), (141, 1485673), (329, 636717), (987, 212239)]