12289319

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 14469120

約数和(自身を除く): 2179801

約数列:

[1, 7, 71, 79, 313, 497, 553, 2191, 5609, 22223, 24727, 39263, 155561, 173089, 1755617, 12289319]

約数ペア:

[(1, 12289319), (7, 1755617), (71, 173089), (79, 155561), (313, 39263), (497, 24727), (553, 22223), (2191, 5609)]