13140869

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 16240896

約数和(自身を除く): 3100027

約数列:

[1, 7, 31, 41, 49, 211, 217, 287, 1271, 1477, 1519, 2009, 6541, 8651, 8897, 10339, 45787, 60557, 62279, 268181, 320509, 423899, 1877267, 13140869]

約数ペア:

[(1, 13140869), (7, 1877267), (31, 423899), (41, 320509), (49, 268181), (211, 62279), (217, 60557), (287, 45787), (1271, 10339), (1477, 8897), (1519, 8651), (2009, 6541)]