20781046

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72661}}^1$

素因数の和:72687

約数の個数: 16

約数和(自身を含む): 36621648

約数和(自身を除く): 15840602

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72661, 145322, 799271, 944593, 1598542, 1889186, 10390523, 20781046]

約数ペア:

[(1, 20781046), (2, 10390523), (11, 1889186), (13, 1598542), (22, 944593), (26, 799271), (143, 145322), (286, 72661)]