18997083

素因数分解:

$3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{911}}^1$

素因数の和:1255

約数の個数: 24

約数和(自身を含む): 31489536

約数和(自身を除く): 12492453

約数列:

[1, 3, 7, 9, 21, 63, 331, 911, 993, 2317, 2733, 2979, 6377, 6951, 8199, 19131, 20853, 57393, 301541, 904623, 2110787, 2713869, 6332361, 18997083]

約数ペア:

[(1, 18997083), (3, 6332361), (7, 2713869), (9, 2110787), (21, 904623), (63, 301541), (331, 57393), (911, 20853), (993, 19131), (2317, 8199), (2733, 6951), (2979, 6377)]