21132049

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 22708224

約数和(自身を除く): 1576175

約数列:

[1, 31, 43, 83, 191, 1333, 2573, 3569, 5921, 8213, 15853, 110639, 254603, 491443, 681679, 21132049]

約数ペア:

[(1, 21132049), (31, 681679), (43, 491443), (83, 254603), (191, 110639), (1333, 15853), (2573, 8213), (3569, 5921)]