21887346

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280607}}^1$

素因数の和:280625

約数の個数: 16

約数和(自身を含む): 47142144

約数和(自身を除く): 25254798

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280607, 561214, 841821, 1683642, 3647891, 7295782, 10943673, 21887346]

約数ペア:

[(1, 21887346), (2, 10943673), (3, 7295782), (6, 3647891), (13, 1683642), (26, 841821), (39, 561214), (78, 280607)]