393921

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 651456

約数和(自身を除く): 257535

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 173, 207, 253, 519, 759, 1557, 1903, 2277, 3979, 5709, 11937, 17127, 35811, 43769, 131307, 393921]

約数ペア:

[(1, 393921), (3, 131307), (9, 43769), (11, 35811), (23, 17127), (33, 11937), (69, 5709), (99, 3979), (173, 2277), (207, 1903), (253, 1557), (519, 759)]