19158885

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 35178624

約数和(自身を除く): 16019739

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 107, 115, 173, 207, 321, 345, 519, 535, 865, 963, 1035, 1557, 1605, 2461, 2595, 3979, 4815, 7383, 7785, 11937, 12305, 18511, 19895, 22149, 35811, 36915, 55533, 59685, 92555, 110745, 166599, 179055, 277665, 425753, 832995, 1277259, 2128765, 3831777, 6386295, 19158885]

約数ペア:

[(1, 19158885), (3, 6386295), (5, 3831777), (9, 2128765), (15, 1277259), (23, 832995), (45, 425753), (69, 277665), (107, 179055), (115, 166599), (173, 110745), (207, 92555), (321, 59685), (345, 55533), (519, 36915), (535, 35811), (865, 22149), (963, 19895), (1035, 18511), (1557, 12305), (1605, 11937), (2461, 7785), (2595, 7383), (3979, 4815)]