19805335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{1229}}^1$

素因数の和:1538

約数の個数: 16

約数和(自身を含む): 26036640

約数和(自身を除く): 6231305

約数列:

[1, 5, 11, 55, 293, 1229, 1465, 3223, 6145, 13519, 16115, 67595, 360097, 1800485, 3961067, 19805335]

約数ペア:

[(1, 19805335), (5, 3961067), (11, 1800485), (55, 360097), (293, 67595), (1229, 16115), (1465, 13519), (3223, 6145)]