20295918

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15881}}^1$

素因数の和:15960

約数の個数: 24

約数和(自身を含む): 44596656

約数和(自身を除く): 24300738

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15881, 31762, 47643, 95286, 142929, 285858, 1127551, 2255102, 3382653, 6765306, 10147959, 20295918]

約数ペア:

[(1, 20295918), (2, 10147959), (3, 6765306), (6, 3382653), (9, 2255102), (18, 1127551), (71, 285858), (142, 142929), (213, 95286), (426, 47643), (639, 31762), (1278, 15881)]