18876699

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 29145600

約数和(自身を除く): 10268901

約数列:

[1, 3, 9, 27, 43, 71, 129, 213, 229, 387, 639, 687, 1161, 1917, 2061, 3053, 6183, 9159, 9847, 16259, 27477, 29541, 48777, 82431, 88623, 146331, 265869, 438993, 699137, 2097411, 6292233, 18876699]

約数ペア:

[(1, 18876699), (3, 6292233), (9, 2097411), (27, 699137), (43, 438993), (71, 265869), (129, 146331), (213, 88623), (229, 82431), (387, 48777), (639, 29541), (687, 27477), (1161, 16259), (1917, 9847), (2061, 9159), (3053, 6183)]