220884723

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 341661528

約数和(自身を除く): 120776805

約数列:

[1, 3, 9, 17, 51, 153, 163, 289, 489, 521, 867, 1467, 1563, 2601, 2771, 4689, 8313, 8857, 24939, 26571, 47107, 79713, 84923, 141321, 150569, 254769, 423963, 451707, 764307, 1355121, 1443691, 4331073, 12993219, 24542747, 73628241, 220884723]

約数ペア:

[(1, 220884723), (3, 73628241), (9, 24542747), (17, 12993219), (51, 4331073), (153, 1443691), (163, 1355121), (289, 764307), (489, 451707), (521, 423963), (867, 254769), (1467, 150569), (1563, 141321), (2601, 84923), (2771, 79713), (4689, 47107), (8313, 26571), (8857, 24939)]