17955639

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 36

約数和(自身を含む): 28940184

約数和(自身を除く): 10984545

約数列:

[1, 3, 9, 13, 39, 43, 83, 117, 129, 249, 387, 559, 747, 1079, 1677, 1849, 3237, 3569, 5031, 5547, 9711, 10707, 16641, 24037, 32121, 46397, 72111, 139191, 153467, 216333, 417573, 460401, 1381203, 1995071, 5985213, 17955639]

約数ペア:

[(1, 17955639), (3, 5985213), (9, 1995071), (13, 1381203), (39, 460401), (43, 417573), (83, 216333), (117, 153467), (129, 139191), (249, 72111), (387, 46397), (559, 32121), (747, 24037), (1079, 16641), (1677, 10707), (1849, 9711), (3237, 5547), (3569, 5031)]