209260881

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{250013}}^1$

素因数の和:250053

約数の個数: 16

約数和(自身を含む): 320017920

約数和(自身を除く): 110757039

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 250013, 750039, 2250117, 6750351, 7750403, 23251209, 69753627, 209260881]

約数ペア:

[(1, 209260881), (3, 69753627), (9, 23251209), (27, 7750403), (31, 6750351), (93, 2250117), (279, 750039), (837, 250013)]