21688813

素因数分解:

${\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 1374227

約数列:

[1, 43, 59, 83, 103, 2537, 3569, 4429, 4897, 6077, 8549, 210571, 261311, 367607, 504391, 21688813]

約数ペア:

[(1, 21688813), (43, 504391), (59, 367607), (83, 261311), (103, 210571), (2537, 8549), (3569, 6077), (4429, 4897)]