18971121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13147}}^1$

素因数の和:13200

約数の個数: 16

約数和(自身を含む): 27978944

約数和(自身を除く): 9007823

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13147, 39441, 170911, 486439, 512733, 1459317, 6323707, 18971121]

約数ペア:

[(1, 18971121), (3, 6323707), (13, 1459317), (37, 512733), (39, 486439), (111, 170911), (481, 39441), (1443, 13147)]