21580953

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 29731200

約数和(自身を除く): 8150247

約数列:

[1, 3, 37, 111, 199, 597, 977, 2931, 7363, 22089, 36149, 108447, 194423, 583269, 7193651, 21580953]

約数ペア:

[(1, 21580953), (3, 7193651), (37, 583269), (111, 194423), (199, 108447), (597, 36149), (977, 22089), (2931, 7363)]