20163921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20809}}^1$

素因数の和:20848

約数の個数: 16

約数和(自身を含む): 29966400

約数和(自身を除く): 9802479

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 20809, 62427, 353753, 395371, 1061259, 1186113, 6721307, 20163921]

約数ペア:

[(1, 20163921), (3, 6721307), (17, 1186113), (19, 1061259), (51, 395371), (57, 353753), (323, 62427), (969, 20809)]