71797401

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 120637440

約数和(自身を除く): 48840039

約数列:

[1, 3, 9, 13, 27, 39, 43, 67, 71, 117, 129, 201, 213, 351, 387, 559, 603, 639, 871, 923, 1161, 1677, 1809, 1917, 2613, 2769, 2881, 3053, 4757, 5031, 7839, 8307, 8643, 9159, 14271, 15093, 23517, 24921, 25929, 27477, 37453, 39689, 42813, 61841, 77787, 82431, 112359, 119067, 128439, 185523, 204551, 337077, 357201, 556569, 613653, 1011231, 1071603, 1669707, 1840959, 2659163, 5522877, 7977489, 23932467, 71797401]

約数ペア:

[(1, 71797401), (3, 23932467), (9, 7977489), (13, 5522877), (27, 2659163), (39, 1840959), (43, 1669707), (67, 1071603), (71, 1011231), (117, 613653), (129, 556569), (201, 357201), (213, 337077), (351, 204551), (387, 185523), (559, 128439), (603, 119067), (639, 112359), (871, 82431), (923, 77787), (1161, 61841), (1677, 42813), (1809, 39689), (1917, 37453), (2613, 27477), (2769, 25929), (2881, 24921), (3053, 23517), (4757, 15093), (5031, 14271), (7839, 9159), (8307, 8643)]