626859

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:192

約数の個数: 20

約数和(自身を含む): 958320

約数和(自身を除く): 331461

約数列:

[1, 3, 9, 27, 71, 81, 109, 213, 327, 639, 981, 1917, 2943, 5751, 7739, 8829, 23217, 69651, 208953, 626859]

約数ペア:

[(1, 626859), (3, 208953), (9, 69651), (27, 23217), (71, 8829), (81, 7739), (109, 5751), (213, 2943), (327, 1917), (639, 981)]