77888889

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1322

約数の個数: 36

約数和(自身を含む): 124897500

約数和(自身を除く): 47008611

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 169, 369, 507, 533, 1249, 1521, 1599, 3747, 4797, 6929, 11241, 16237, 20787, 48711, 51209, 62361, 146133, 153627, 211081, 460881, 633243, 665717, 1899729, 1997151, 5991453, 8654321, 25962963, 77888889]

約数ペア:

[(1, 77888889), (3, 25962963), (9, 8654321), (13, 5991453), (39, 1997151), (41, 1899729), (117, 665717), (123, 633243), (169, 460881), (369, 211081), (507, 153627), (533, 146133), (1249, 62361), (1521, 51209), (1599, 48711), (3747, 20787), (4797, 16237), (6929, 11241)]