28657203757

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{11497}}^1$

素因数の和:11587

約数の個数: 48

約数和(自身を含む): 37032758400

約数和(自身を除く): 8375554643

約数列:

[1, 7, 13, 43, 49, 91, 169, 301, 343, 559, 637, 1183, 2107, 3913, 4459, 7267, 8281, 11497, 14749, 27391, 50869, 57967, 80479, 149461, 191737, 356083, 494371, 563353, 1046227, 1942993, 2492581, 3460597, 3943471, 6426823, 7323589, 13600951, 24224179, 44987761, 51265123, 83548699, 95206657, 169569253, 314914327, 584840893, 666446599, 2204400289, 4093886251, 28657203757]

約数ペア:

[(1, 28657203757), (7, 4093886251), (13, 2204400289), (43, 666446599), (49, 584840893), (91, 314914327), (169, 169569253), (301, 95206657), (343, 83548699), (559, 51265123), (637, 44987761), (1183, 24224179), (2107, 13600951), (3913, 7323589), (4459, 6426823), (7267, 3943471), (8281, 3460597), (11497, 2492581), (14749, 1942993), (27391, 1046227), (50869, 563353), (57967, 494371), (80479, 356083), (149461, 191737)]