19681161

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 7171959

約数列:

[1, 3, 59, 177, 251, 443, 753, 1329, 14809, 26137, 44427, 78411, 111193, 333579, 6560387, 19681161]

約数ペア:

[(1, 19681161), (3, 6560387), (59, 333579), (177, 111193), (251, 78411), (443, 44427), (753, 26137), (1329, 14809)]