18449847

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2311

約数の個数: 24

約数和(自身を含む): 29117088

約数和(自身を除く): 10667241

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2221, 2769, 6663, 8307, 19989, 28873, 86619, 157691, 259857, 473073, 1419219, 2049983, 6149949, 18449847]

約数ペア:

[(1, 18449847), (3, 6149949), (9, 2049983), (13, 1419219), (39, 473073), (71, 259857), (117, 157691), (213, 86619), (639, 28873), (923, 19989), (2221, 8307), (2769, 6663)]