18678813

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{4993}}^1$

素因数の和:5068

約数の個数: 16

約数和(自身を含む): 26368320

約数和(自身を除く): 7689507

約数列:

[1, 3, 29, 43, 87, 129, 1247, 3741, 4993, 14979, 144797, 214699, 434391, 644097, 6226271, 18678813]

約数ペア:

[(1, 18678813), (3, 6226271), (29, 644097), (43, 434391), (87, 214699), (129, 144797), (1247, 14979), (3741, 4993)]