255847137

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1\times {\mathrm{1091}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 420725760

約数和(自身を除く): 164878623

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 859, 1091, 2577, 3273, 6013, 7637, 11167, 14183, 18039, 22911, 33501, 42549, 78169, 99281, 234507, 297843, 937169, 2811507, 6560183, 12183197, 19680549, 36549591, 85282379, 255847137]

約数ペア:

[(1, 255847137), (3, 85282379), (7, 36549591), (13, 19680549), (21, 12183197), (39, 6560183), (91, 2811507), (273, 937169), (859, 297843), (1091, 234507), (2577, 99281), (3273, 78169), (6013, 42549), (7637, 33501), (11167, 22911), (14183, 18039)]