138398787

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{55117}}^1$

素因数の和:55160

約数の個数: 20

約数和(自身を含む): 213416896

約数和(自身を除く): 75018109

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 55117, 165351, 496053, 1488159, 1708627, 4464477, 5125881, 15377643, 46132929, 138398787]

約数ペア:

[(1, 138398787), (3, 46132929), (9, 15377643), (27, 5125881), (31, 4464477), (81, 1708627), (93, 1488159), (279, 496053), (837, 165351), (2511, 55117)]