27721265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 39505536

約数和(自身を除く): 11784271

約数列:

[1, 5, 11, 13, 55, 65, 137, 143, 283, 685, 715, 1415, 1507, 1781, 3113, 3679, 7535, 8905, 15565, 18395, 19591, 38771, 40469, 97955, 193855, 202345, 426481, 504023, 2132405, 2520115, 5544253, 27721265]

約数ペア:

[(1, 27721265), (5, 5544253), (11, 2520115), (13, 2132405), (55, 504023), (65, 426481), (137, 202345), (143, 193855), (283, 97955), (685, 40469), (715, 38771), (1415, 19591), (1507, 18395), (1781, 15565), (3113, 8905), (3679, 7535)]