18761679

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9787}}^1$

素因数の和:9867

約数の個数: 16

約数和(自身を含む): 28189440

約数和(自身を除く): 9427761

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9787, 29361, 88083, 264249, 694877, 2084631, 6253893, 18761679]

約数ペア:

[(1, 18761679), (3, 6253893), (9, 2084631), (27, 694877), (71, 264249), (213, 88083), (639, 29361), (1917, 9787)]