19220465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11273}}^1$

素因数の和:11320

約数の個数: 16

約数和(自身を含む): 25975296

約数和(自身を除く): 6754831

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11273, 56365, 124003, 349463, 620015, 1747315, 3844093, 19220465]

約数ペア:

[(1, 19220465), (5, 3844093), (11, 1747315), (31, 620015), (55, 349463), (155, 124003), (341, 56365), (1705, 11273)]