18610787

素因数分解:

${\mathrm{13}}^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 16

約数和(自身を含む): 20734560

約数和(自身を除く): 2123773

約数列:

[1, 13, 43, 169, 197, 559, 2197, 2561, 7267, 8471, 33293, 94471, 110123, 432809, 1431599, 18610787]

約数ペア:

[(1, 18610787), (13, 1431599), (43, 432809), (169, 110123), (197, 94471), (559, 33293), (2197, 8471), (2561, 7267)]