212865653

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1787}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 308193984

約数和(自身を除く): 95328331

約数列:

[1, 7, 11, 13, 17, 49, 77, 91, 119, 143, 187, 221, 539, 637, 833, 1001, 1309, 1547, 1787, 2431, 7007, 9163, 10829, 12509, 17017, 19657, 23231, 30379, 87563, 119119, 137599, 162617, 212653, 255541, 334169, 394927, 963193, 1138319, 1488571, 1788787, 2339183, 2764489, 4344197, 12521509, 16374281, 19351423, 30409379, 212865653]

約数ペア:

[(1, 212865653), (7, 30409379), (11, 19351423), (13, 16374281), (17, 12521509), (49, 4344197), (77, 2764489), (91, 2339183), (119, 1788787), (143, 1488571), (187, 1138319), (221, 963193), (539, 394927), (637, 334169), (833, 255541), (1001, 212653), (1309, 162617), (1547, 137599), (1787, 119119), (2431, 87563), (7007, 30379), (9163, 23231), (10829, 19657), (12509, 17017)]