210905613

素因数分解:

$3^4\times {\mathrm{491}}^1\times {\mathrm{5303}}^1$

素因数の和:5806

約数の個数: 20

約数和(自身を含む): 315757728

約数和(自身を除く): 104852115

約数列:

[1, 3, 9, 27, 81, 491, 1473, 4419, 5303, 13257, 15909, 39771, 47727, 143181, 429543, 2603773, 7811319, 23433957, 70301871, 210905613]

約数ペア:

[(1, 210905613), (3, 70301871), (9, 23433957), (27, 7811319), (81, 2603773), (491, 429543), (1473, 143181), (4419, 47727), (5303, 39771), (13257, 15909)]