19800717

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{907}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 27893760

約数和(自身を除く): 8093043

約数列:

[1, 3, 19, 57, 383, 907, 1149, 2721, 7277, 17233, 21831, 51699, 347381, 1042143, 6600239, 19800717]

約数ペア:

[(1, 19800717), (3, 6600239), (19, 1042143), (57, 347381), (383, 51699), (907, 21831), (1149, 17233), (2721, 7277)]