81291639

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{189491}}^1$

素因数の和:189518

約数の個数: 16

約数和(自身を含む): 127338624

約数和(自身を除く): 46046985

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 189491, 568473, 2084401, 2463383, 6253203, 7390149, 27097213, 81291639]

約数ペア:

[(1, 81291639), (3, 27097213), (11, 7390149), (13, 6253203), (33, 2463383), (39, 2084401), (143, 568473), (429, 189491)]