19985133

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5501}}^1$

素因数の和:5684

約数の個数: 16

約数和(自身を含む): 30635136

約数和(自身を除く): 10650003

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5501, 16503, 38507, 115521, 951673, 2855019, 6661711, 19985133]

約数ペア:

[(1, 19985133), (3, 6661711), (7, 2855019), (21, 951673), (173, 115521), (519, 38507), (1211, 16503), (3633, 5501)]