209904303

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{212669}}^1$

素因数の和:212726

約数の個数: 16

約数和(自身を含む): 326661120

約数和(自身を除く): 116756817

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 212669, 638007, 1488683, 4466049, 9995443, 29986329, 69968101, 209904303]

約数ペア:

[(1, 209904303), (3, 69968101), (7, 29986329), (21, 9995443), (47, 4466049), (141, 1488683), (329, 638007), (987, 212669)]