247886529

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{15881}}^1$

素因数の和:15949

約数の個数: 24

約数和(自身を含む): 371765856

約数和(自身を除く): 123879327

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1419, 5203, 15609, 15881, 47643, 174691, 524073, 682883, 1921601, 2048649, 5764803, 7511713, 22535139, 82628843, 247886529]

約数ペア:

[(1, 247886529), (3, 82628843), (11, 22535139), (33, 7511713), (43, 5764803), (121, 2048649), (129, 1921601), (363, 682883), (473, 524073), (1419, 174691), (5203, 47643), (15609, 15881)]