784453653

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{136403}}^1$

素因数の和:136486

約数の個数: 20

約数和(自身を含む): 1188351648

約数和(自身を除く): 403897995

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 136403, 409209, 1227627, 3682881, 9684613, 11048643, 29053839, 87161517, 261484551, 784453653]

約数ペア:

[(1, 784453653), (3, 261484551), (9, 87161517), (27, 29053839), (71, 11048643), (81, 9684613), (213, 3682881), (639, 1227627), (1917, 409209), (5751, 136403)]