20461077

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 38342304

約数和(自身を除く): 17881227

約数列:

[1, 3, 7, 9, 13, 21, 39, 43, 49, 63, 83, 91, 117, 129, 147, 249, 273, 301, 387, 441, 559, 581, 637, 747, 819, 903, 1079, 1677, 1743, 1911, 2107, 2709, 3237, 3569, 3913, 4067, 5031, 5229, 5733, 6321, 7553, 9711, 10707, 11739, 12201, 18963, 22659, 24983, 27391, 32121, 35217, 36603, 46397, 52871, 67977, 74949, 82173, 139191, 158613, 174881, 224847, 246519, 324779, 417573, 475839, 524643, 974337, 1573929, 2273453, 2923011, 6820359, 20461077]

約数ペア:

[(1, 20461077), (3, 6820359), (7, 2923011), (9, 2273453), (13, 1573929), (21, 974337), (39, 524643), (43, 475839), (49, 417573), (63, 324779), (83, 246519), (91, 224847), (117, 174881), (129, 158613), (147, 139191), (249, 82173), (273, 74949), (301, 67977), (387, 52871), (441, 46397), (559, 36603), (581, 35217), (637, 32121), (747, 27391), (819, 24983), (903, 22659), (1079, 18963), (1677, 12201), (1743, 11739), (1911, 10707), (2107, 9711), (2709, 7553), (3237, 6321), (3569, 5733), (3913, 5229), (4067, 5031)]