8138949

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4259}}^1$

素因数の和:4289

約数の個数: 24

約数和(自身を含む): 13597920

約数和(自身を除く): 5458971

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 4259, 12777, 29813, 55367, 89439, 166101, 208691, 387569, 626073, 1162707, 2712983, 8138949]

約数ペア:

[(1, 8138949), (3, 2712983), (7, 1162707), (13, 626073), (21, 387569), (39, 208691), (49, 166101), (91, 89439), (147, 55367), (273, 29813), (637, 12777), (1911, 4259)]