277928959

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 354041856

約数和(自身を除く): 76112897

約数列:

[1, 7, 11, 77, 97, 127, 293, 679, 889, 1067, 1397, 2051, 3223, 7469, 9779, 12319, 22561, 28421, 37211, 86233, 135509, 198947, 260477, 312631, 409321, 948563, 2188417, 2865247, 3609467, 25266269, 39704137, 277928959]

約数ペア:

[(1, 277928959), (7, 39704137), (11, 25266269), (77, 3609467), (97, 2865247), (127, 2188417), (293, 948563), (679, 409321), (889, 312631), (1067, 260477), (1397, 198947), (2051, 135509), (3223, 86233), (7469, 37211), (9779, 28421), (12319, 22561)]