138976019

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^2$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 176131872

約数和(自身を除く): 37155853

約数列:

[1, 7, 13, 41, 91, 193, 287, 533, 1351, 2509, 3731, 7913, 17563, 37249, 55391, 102869, 260743, 484237, 720083, 1527209, 3389659, 10690463, 19853717, 138976019]

約数ペア:

[(1, 138976019), (7, 19853717), (13, 10690463), (41, 3389659), (91, 1527209), (193, 720083), (287, 484237), (533, 260743), (1351, 102869), (2509, 55391), (3731, 37249), (7913, 17563)]