21610587

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{659}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 30602880

約数和(自身を除く): 8992293

約数列:

[1, 3, 17, 51, 643, 659, 1929, 1977, 10931, 11203, 32793, 33609, 423737, 1271211, 7203529, 21610587]

約数ペア:

[(1, 21610587), (3, 7203529), (17, 1271211), (51, 423737), (643, 33609), (659, 32793), (1929, 11203), (1977, 10931)]