18439767

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 27986400

約数和(自身を除く): 9546633

約数列:

[1, 3, 9, 23, 69, 207, 229, 389, 687, 1167, 2061, 3501, 5267, 8947, 15801, 26841, 47403, 80523, 89081, 267243, 801729, 2048863, 6146589, 18439767]

約数ペア:

[(1, 18439767), (3, 6146589), (9, 2048863), (23, 801729), (69, 267243), (207, 89081), (229, 80523), (389, 47403), (687, 26841), (1167, 15801), (2061, 8947), (3501, 5267)]