278539079

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{10169}}^1$

素因数の和:10239

約数の個数: 24

約数和(自身を含む): 357089040

約数和(自身を除く): 78549961

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 2107, 3913, 10169, 27391, 71183, 132197, 437267, 498281, 925379, 3060869, 5684471, 6477653, 21426083, 39791297, 278539079]

約数ペア:

[(1, 278539079), (7, 39791297), (13, 21426083), (43, 6477653), (49, 5684471), (91, 3060869), (301, 925379), (559, 498281), (637, 437267), (2107, 132197), (3913, 71183), (10169, 27391)]