21010491

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{587}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 31462704

約数和(自身を除く): 10452213

約数列:

[1, 3, 9, 41, 97, 123, 291, 369, 587, 873, 1761, 3977, 5283, 11931, 24067, 35793, 56939, 72201, 170817, 216603, 512451, 2334499, 7003497, 21010491]

約数ペア:

[(1, 21010491), (3, 7003497), (9, 2334499), (41, 512451), (97, 216603), (123, 170817), (291, 72201), (369, 56939), (587, 35793), (873, 24067), (1761, 11931), (3977, 5283)]