13688109

素因数分解:

$3^4\times {\mathrm{347}}^1\times {\mathrm{487}}^1$

素因数の和:846

約数の個数: 20

約数和(自身を含む): 20548704

約数和(自身を除く): 6860595

約数列:

[1, 3, 9, 27, 81, 347, 487, 1041, 1461, 3123, 4383, 9369, 13149, 28107, 39447, 168989, 506967, 1520901, 4562703, 13688109]

約数ペア:

[(1, 13688109), (3, 4562703), (9, 1520901), (27, 506967), (81, 168989), (347, 39447), (487, 28107), (1041, 13149), (1461, 9369), (3123, 4383)]