18748938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{240371}}^1$

素因数の和:240389

約数の個数: 16

約数和(自身を含む): 40382496

約数和(自身を除く): 21633558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 240371, 480742, 721113, 1442226, 3124823, 6249646, 9374469, 18748938]

約数ペア:

[(1, 18748938), (2, 9374469), (3, 6249646), (6, 3124823), (13, 1442226), (26, 721113), (39, 480742), (78, 240371)]