12457319

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 15321600

約数和(自身を除く): 2864281

約数列:

[1, 7, 31, 49, 59, 139, 217, 413, 973, 1519, 1829, 2891, 4309, 6811, 8201, 12803, 30163, 57407, 89621, 211141, 254231, 401849, 1779617, 12457319]

約数ペア:

[(1, 12457319), (7, 1779617), (31, 401849), (49, 254231), (59, 211141), (139, 89621), (217, 57407), (413, 30163), (973, 12803), (1519, 8201), (1829, 6811), (2891, 4309)]