20561937

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{7001}}^1$

素因数の和:7104

約数の個数: 16

約数和(自身を含む): 30248640

約数和(自身を除く): 9686703

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 7001, 21003, 77011, 231033, 623089, 1869267, 6853979, 20561937]

約数ペア:

[(1, 20561937), (3, 6853979), (11, 1869267), (33, 623089), (89, 231033), (267, 77011), (979, 21003), (2937, 7001)]