19892905

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 25676352

約数和(自身を除く): 5783447

約数列:

[1, 5, 19, 95, 103, 107, 361, 515, 535, 1805, 1957, 2033, 9785, 10165, 11021, 37183, 38627, 55105, 185915, 193135, 209399, 1046995, 3978581, 19892905]

約数ペア:

[(1, 19892905), (5, 3978581), (19, 1046995), (95, 209399), (103, 193135), (107, 185915), (361, 55105), (515, 38627), (535, 37183), (1805, 11021), (1957, 10165), (2033, 9785)]