18723609

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{6481}}^1$

素因数の和:6597

約数の個数: 16

約数和(自身を含む): 28002240

約数和(自身を除く): 9278631

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 6481, 19443, 58329, 174987, 693467, 2080401, 6241203, 18723609]

約数ペア:

[(1, 18723609), (3, 6241203), (9, 2080401), (27, 693467), (107, 174987), (321, 58329), (963, 19443), (2889, 6481)]